50 results on '"Knapp, M"'
Search Results
2. A randomised controlled trial of calcium channel blockade (CCB) with Amlodipine For the treatment oF subcortical ischaEmic vasCular demenTia (AFFECT): study protocol
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Greenan, C, Murphy, L, Yu, LM, Kehoe, PG, Coulthard, E, Bath, P, Stewart, R, Jones, R, Corbett, A, Thomas, A, Connelly, P, Arrojo, F, Canning, R, Wallach, S, Henderson, C, McGuinness, B, O'Sullivan, M, Holmes, C, Knapp, M, Ballard, C, Passmore, P, Jackson, E, Soiza, R, Raymont, V, Velayudhan, L, Vanderputt, R, Pearson, S, Lawrence, R, and Harrington, F
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General & Internal Medicine ,1103 Clinical Sciences ,1102 Cardiovascular Medicine And Haematology - Abstract
© 2016 Greenan et al.Background: Vascular dementia is the second most common cause of dementia affecting over seven million people worldwide, yet there are no licensed treatments. There is an urgent need for a clinical trial in this patient group. Subcortical ischaemic vascular dementia is the most common variant of vascular dementia. This randomised trial will investigate whether use of calcium channel blockade with amlodipine, a commonly used agent, can provide the first evidence-based pharmacological treatment for subcortical ischaemic vascular dementia. Methods/Design: This is a randomised controlled trial of calcium channel blockade with Amlodipine For the treatment oF subcortical ischaEmic vasCular demenTia (AFFECT) to test the hypothesis that treatment with amlodipine can improve outcomes for these patients in a phase IIb, multi-centre, double-blind, placebo-controlled randomised trial. The primary outcome is the change from baseline to 12 months in the Vascular Dementia Assessment Scale cognitive subscale (VADAS-cog). Secondary outcomes include cognitive function, executive function, clinical global impression of change, change in blood pressure, quantitative evaluation of lesion accrual based on magnetic resonance imaging (MRI), health-related quality of life, activities of daily living, non-cognitive dementia symptoms, care-giver burden and care-giver health-related quality of life, cost-effectiveness and institutionalisation. A total of 588 patients will be randomised in a 1:1 ratio to either amlodipine or placebo, recruited from sites across the UK and enrolled in the trial for 104 weeks. Discussion: There are no treatments licensed for vascular dementia. The most common subtype is subcortical ischaemic vascular dementia (SIVD). This study is designed to investigate whether amlodipine can produce benefits compared to placebo in established SIVD. It is estimated that the numbers of people with VaD and SIVD will increase globally in the future and the results of this study should inform important treatment decisions. Trial registration: Current Controlled Trials ISRCTN31208535. Registered on 7 March 2014.
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- 2016
3. Design of an internet-based health economic evaluation of a preventive group-intervention for children of parents with mental illness or substance use disorders.
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Woolderink M, Smit F, van der Zanden R, Beecham J, Knapp M, Paulus A, Evers S, Woolderink, Marla, Smit, Filip, van der Zanden, Rianne, Beecham, Jennifer, Knapp, Martin, Paulus, Aggie, and Evers, Silvia
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Background: Preventive interventions are developed for children of parents with mental and substance use disorders (COPMI), because these children have a higher risk of developing a psychological or behavioral disorder in the future. Mental health and substance use disorders contribute significantly to the global burden of disease. Although the exact number of parents with a mental illness is unclear, the subject of mentally ill parents is gaining attention. Moreover there is a lack of interventions for COPMI-children, as well of (cost-) effectiveness studies evaluating COPMI interventions. Innovative interventions such as e-health provide a new field for exploration. There is no knowledge about the opportunities for using the internet to prevent problems in children at risk. In the current study we will focus on the (cost-) effectiveness of an online health prevention program for COPMI-children.Methods/design: We designed a randomized controlled trial to examine the (cost-) effectiveness of the Kopstoring intervention. Kopstoring is an online intervention for COPMI-children to strengthen their coping skills and prevent behavioral and psychological problems. We will compare the Kopstoring intervention with (waiting list) care as usual. This trial will be conducted entirely over the internet. An economic evaluation, from a societal perspective will be conducted, to examine the trial's cost-effectiveness. Power calculations show that 214 participants are needed, aged 16-25. Possible participants will be recruited via media announcements and banners on the internet. After screening and completing informed consent procedures, participants will be randomized. The main outcome is internalizing and externalizing symptoms as measured by the Youth Self Report. For the economic evaluation, healthcare costs and costs outside the healthcare sector will be measured at the same time as the clinical measures, at baseline, 3, 6 and 9 months. An extended measure for the intervention group will be provided at 12 months, to examine the long-term effects. In addition, a process evaluation will be conducted.Discussion: Recent developments, such as international conferences and policy discussions, show the pressing need to study the (cost-) effectiveness of interventions for vulnerable groups of children. This study will shed light on the (cost-) effectiveness of an online preventive intervention.Trial Registration: NTR1982. [ABSTRACT FROM AUTHOR]- Published
- 2010
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4. Exploring barriers to participation and adoption of telehealth and telecare within the Whole System Demonstrator trial: a qualitative study
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Anne Rogers, Theti Chrysanthaki, Martin Knapp, James Barlow, Caroline Sanders, Martin Bardsley, Stanton Newman, Martin Cartwright, Robert Bowen, Shashivadan P. Hirani, Peter Bower, Jane Hendy, Ray Fitzpatrick, Sanders, C, Rogers, A, Bowen, R, Hirani, S, Cartwright, M, Fitzpatrick, R, Knapp, M, Barlow, J, Hendy, J, Chrysanthaki, T, Bardsley, M, Newman, S, Department of Health, and Engineering & Physical Science Research Council (EPSRC)
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Male ,Health Knowledge, Attitudes, Practice ,Psychological intervention ,Telehealth ,Non-participation ,Health administration ,0807 Library And Information Studies ,London ,Medicine ,Aged, 80 and over ,Nursing research ,Telecare ,Health Policy ,lcsh:Public aspects of medicine ,HOME TELECARE ,Patients' perspectives ,Middle Aged ,Telemedicine ,House Calls ,1117 Public Health And Health Services ,Health Policy & Services ,Female ,HEALTH ,Life Sciences & Biomedicine ,Barriers ,Research Article ,Non-adoption ,RECRUITMENT ,Adult ,Patient Dropouts ,PROFESSIONALS ,Nursing ,Patients’ perspectives ,Qualitative research ,Humans ,TECHNOLOGY ,OLDER-PEOPLE ,Competence (human resources) ,Aged ,Health Services Needs and Demand ,Science & Technology ,business.industry ,lcsh:RA1-1270 ,CARE ,Whole System Demonstrator ,RANDOMIZED-TRIAL ,Self Care ,Health Care Sciences & Services ,PERSPECTIVES ,Diffusion of Innovation ,business ,RA - Abstract
Background Telehealth (TH) and telecare (TC) interventions are increasingly valued for supporting self-care in ageing populations; however, evaluation studies often report high rates of non-participation that are not well understood. This paper reports from a qualitative study nested within a large randomised controlled trial in the UK: the Whole System Demonstrator (WSD) project. It explores barriers to participation and adoption of TH and TC from the perspective of people who declined to participate or withdrew from the trial. Methods Qualitative semi-structured interviews were conducted with 22 people who declined to participate in the trial following explanations of the intervention (n = 19), or who withdrew from the intervention arm (n = 3). Participants were recruited from the four trial groups (with diabetes, chronic obstructive pulmonary disease, heart failure, or social care needs); and all came from the three trial areas (Cornwall, Kent, east London). Observations of home visits where the trial and interventions were first explained were also conducted by shadowing 8 members of health and social care staff visiting 23 people at home. Field notes were made of observational visits and explored alongside interview transcripts to elicit key themes. Results Barriers to adoption of TH and TC associated with non-participation and withdrawal from the trial were identified within the following themes: requirements for technical competence and operation of equipment; threats to identity, independence and self-care; expectations and experiences of disruption to services. Respondents held concerns that special skills were needed to operate equipment but these were often based on misunderstandings. Respondents’ views were often explained in terms of potential threats to identity associated with positive ageing and self-reliance, and views that interventions could undermine self-care and coping. Finally, participants were reluctant to risk potentially disruptive changes to existing services that were often highly valued. Conclusions These findings regarding perceptions of potential disruption of interventions to identity and services go beyond more common expectations that concerns about privacy and dislike of technology deter uptake. These insights have implications for health and social care staff indicating that more detailed information and time for discussion could be valuable especially on introduction. It seems especially important for potential recipients to have the opportunity to discuss their expectations and such views might usefully feed back into design and implementation.
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- 2012
5. Implementing national care guidelines in local authorities in England and Wales: a theory-of-change.
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Bauer A, Boaz A, Breuer E, Hoomans T, Jasim S, Knapp M, Camus JM, and Malley J
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- England, Wales, Humans, Practice Guidelines as Topic
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Background: The delivery of high-quality services in chronically underfunded social or long-term care systems is a major challenge internationally. National guidelines, developed by the National Institute for Health and Care Excellence, set out how local authorities in England and Wales should fund and provide care based on best available evidence. Theoretical and participatory approaches can usefully inform the design and evaluation of implementation strategies for guidelines. The aim of the study is to develop a Theory-of-Change for how the implementation of these guidelines is expected to lead to impacts from a local authority perspective., Methods: As part of a comparative case study (The 'Valuing Care Guidelines' study; February 2022 to April 2024) with three local authority sites in England and Wales, we involved altogether 17 participants in two Theory-of-Change online workshops per site, each of 2 hours. Additional data gathered from the same participants as part of the overall study were used to conceptualise and enrich information from the workshops., Results: Participants described the Theory-of-Change map as follows: A wide range of activities (categorised in stages of 'pre-implementation', 'implementation', 'sustainment and scaling') and skills were required to implement guidelines, and achieve long-term organisational sustainability and service delivery outcomes, leading to final impacts for service users and carers. Participants described a co-creation implementation model, led by 'Implementation Support Practitioners', who utilised relational skills to achieve motivation, trust, and confidence at different organisational levels, addressing contextual barriers such as inadequate staffing, lack of resources and of organisational support systems. Consistent use of guidelines by frontline staff could only be achieved if the value of guideline implementation was promoted widely, and if consideration was given to the roles of stakeholders, such as the inspection body, local health care providers, users and carers., Conclusions: Our study is the first to investigate the implementation of national social care guidelines by local authorities in England and Wales. It generates insights that can guide implementation practice as well as inform the evaluation of future implementation strategies., (© 2024. The Author(s).)
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- 2024
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6. Impact of COVID-19 pandemic on depression incidence and healthcare service use among patients with depression: an interrupted time-series analysis from a 9-year population-based study.
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Chan VKY, Chai Y, Chan SSM, Luo H, Jit M, Knapp M, Bishai DM, Ni MY, Wong ICK, and Li X
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- Humans, Male, Hong Kong epidemiology, Incidence, Female, Adult, Middle Aged, Adolescent, Aged, Young Adult, Patient Acceptance of Health Care statistics & numerical data, Pandemics, Child, SARS-CoV-2, Cohort Studies, COVID-19 epidemiology, Interrupted Time Series Analysis, Depression epidemiology
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Background: Most studies on the impact of the COVID-19 pandemic on depression burden focused on the earlier pandemic phase specific to lockdowns, but the longer-term impact of the pandemic is less well-studied. In this population-based cohort study, we examined the short-term and long-term impacts of COVID-19 on depression incidence and healthcare service use among patients with depression., Methods: Using the territory-wide electronic medical records in Hong Kong, we identified all patients aged ≥ 10 years with new diagnoses of depression from 2014 to 2022. We performed an interrupted time-series (ITS) analysis to examine changes in incidence of medically attended depression before and during the pandemic. We then divided all patients into nine cohorts based on year of depression incidence and studied their initial and ongoing service use patterns until the end of 2022. We applied generalized linear modeling to compare the rates of healthcare service use in the year of diagnosis between patients newly diagnosed before and during the pandemic. A separate ITS analysis explored the pandemic impact on the ongoing service use among prevalent patients with depression., Results: We found an immediate increase in depression incidence (RR = 1.21, 95% CI: 1.10-1.33, p < 0.001) in the population after the pandemic began with non-significant slope change, suggesting a sustained effect until the end of 2022. Subgroup analysis showed that the increases in incidence were significant among adults and the older population, but not adolescents. Depression patients newly diagnosed during the pandemic used 11% fewer resources than the pre-pandemic patients in the first diagnosis year. Pre-existing depression patients also had an immediate decrease of 16% in overall all-cause service use since the pandemic, with a positive slope change indicating a gradual rebound over a 3-year period., Conclusions: During the pandemic, service provision for depression was suboptimal in the face of increased demand generated by the increasing depression incidence during the COVID-19 pandemic. Our findings indicate the need to improve mental health resource planning preparedness for future public health crises., (© 2024. The Author(s).)
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- 2024
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7. Health conditions in spousal caregivers of people with dementia and their relationships with stress, caregiving experiences, and social networks: longitudinal findings from the IDEAL programme.
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Sabatini S, Martyr A, Hunt A, Gamble LD, Matthews FE, Thom JM, Jones RW, Allan L, Knapp M, Quinn C, Victor C, Pentecost C, Rusted JM, Morris RG, and Clare L
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- Humans, Caregiver Burden, Cognition, Social Networking, Caregivers psychology, Dementia diagnosis, Dementia epidemiology, Dementia therapy
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Objectives: Longitudinal evidence documenting health conditions in spousal caregivers of people with dementia and whether these influence caregivers' outcomes is scarce. This study explores type and number of health conditions over two years in caregivers of people with dementia and subgroups based on age, sex, education, hours of care, informant-rated functional ability, neuropsychiatric symptoms, cognition of the person with dementia, and length of diagnosis in the person with dementia. It also explores whether over time the number of health conditions is associated with caregivers' stress, positive experiences of caregiving, and social networks METHODS: Longitudinal data from the IDEAL (Improving the experience of Dementia and Enhancing Active Life) cohort were used. Participants comprised spousal caregivers (n = 977) of people with dementia. Self-reported health conditions using the Charlson Comorbidity Index, stress, positive experiences of caregiving, and social network were assessed over two years. Mixed effect models were used RESULTS: On average participants had 1.5 health conditions at baseline; increasing to 2.1 conditions over two years. More health conditions were reported by caregivers who were older, had no formal education, provided 10 + hours of care per day, and/or cared for a person with more neuropsychiatric symptoms at baseline. More baseline health conditions were associated with greater stress at baseline but not with stress over time. Over two years, when caregivers' health conditions increased, their stress increased whereas their social network diminished DISCUSSION: Findings highlight that most caregivers have their own health problems which require management to avoid increased stress and shrinking of social networks., (© 2024. The Author(s).)
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- 2024
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8. Comorbid health conditions and their impact on social isolation, loneliness, quality of life, and well-being in people with dementia: longitudinal findings from the IDEAL programme.
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Sabatini S, Martyr A, Hunt A, Gamble LD, Matthews FE, Thom JM, Jones RW, Allan L, Knapp M, Victor C, Pentecost C, Rusted JM, Morris RG, and Clare L
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- Humans, Quality of Life, Cross-Sectional Studies, Multimorbidity, Social Isolation, Loneliness, Alzheimer Disease
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Background: Most people with dementia have multiple health conditions. This study explores (1) number and type of health condition(s) in people with dementia overall and in relation to age, sex, dementia type, and cognition; (2) change in number of health conditions over two years; and (3) whether over time the number of health conditions at baseline is related to social isolation, loneliness, quality of life, and/or well-being., Methods: Longitudinal data from the IDEAL (Improving the experience of Dementia and Enhancing Active Life) cohort were used. Participants comprised people with dementia (n = 1490) living in the community (at baseline) in Great Britain. Health conditions using the Charlson Comorbidity Index, cognition, social isolation, loneliness, quality of life, and well-being were assessed over two years. Mixed effects modelling was used., Results: On average participants had 1.8 health conditions at baseline, excluding dementia; increasing to 2.5 conditions over two years. Those with vascular dementia or mixed (Alzheimer's and vascular) dementia had more health conditions than those with Alzheimer's disease. People aged ≥ 80 had more health conditions than those aged < 65 years. At baseline having more health conditions was associated with increased loneliness, poorer quality of life, and poorer well-being, but was either minimally or not associated with cognition, sex, and social isolation. Number of health conditions had either minimal or no influence on these variables over time., Conclusions: People with dementia in IDEAL generally had multiple health conditions and those with more health conditions were lonelier, had poorer quality of life, and poorer well-being., (© 2024. The Author(s).)
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- 2024
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9. A qualitative exploration of older people's lived experiences of homelessness and memory problems - stakeholder perspectives.
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Rapaport P, Kidd G, Jeraldo RE, Mason A, Knapp M, Manthorpe J, Shulman C, and Livingston G
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- Humans, Aged, Memory Disorders diagnosis, Memory Disorders epidemiology, Social Isolation, Alcohol Drinking, Cognitive Dysfunction diagnosis, Cognitive Dysfunction epidemiology, Ill-Housed Persons
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Background: The numbers of older people experiencing both homelessness and memory problems are growing, yet their complex health, housing and care needs remain undelineated and unmet. There is a critical gap in understanding what can improve the care, support and experiences of this group. In this qualitative study we explore how stakeholders understand memory problems among older people in the context of homelessness and consider what they judge gets in the way of achieving positive outcomes., Method: We conducted reflexive thematic analysis of qualitative interviews (n = 49) using a semi-structured topic guide, with 17 older people (aged ≥ 50 years) experiencing memory problems and homelessness, 15 hostel staff and managers, and 17 health, housing and social care practitioners. We recruited participants from six homelessness hostels, one specialist care home and National Health and Local Authority Services in England., Results: We identified four overarching themes. The population is not taken seriously; multiple causes are hard to disentangle; risk of exploitation and vulnerability; and (dis)connection and social isolation. The transience and lack of stability associated with homelessness intensified the disorienting nature of memory and cognitive impairment, and those providing direct and indirect support required flexibility and persistence, with staff moving beyond traditional roles to advocate, provide care and safeguard individuals. Memory problems were perceived by frontline staff and older people to be overlooked, misinterpreted, and misattributed as being caused by alcohol use, resulting in pervasive barriers to achieving positive and desired outcomes., Conclusions: Efforts to meet the needs of older people living with memory problems and experiencing homelessness and future interventions must reflect the complexity of their lives, often in the context of long-term alcohol use and current service provision and we make suggestions as to what could be done to improve the situation., (© 2023. BioMed Central Ltd., part of Springer Nature.)
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- 2023
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10. The link between cognitive health and neighbourhood: perceptions of the public, and of policy-makers, about problems and solutions.
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Stevens M, Matosevic T, Suarez-Pinilla M, Pais S, Rossor M, and Knapp M
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- Middle Aged, Humans, Administrative Personnel, Educational Status, Policy, Cognition, Acceptance and Commitment Therapy
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Background: Growing evidence indicates associations between neighbourhood-related factors such as pollution, social isolation and physical inactivity, and cognition, that is, our ability to think clearly, learn and remember. The evidence raises the possibility of neighbourhood intervention playing a role in protecting population cognitive health. However, there is little understanding of these associations among the public and policy-makers, what they mean and how they might be acted on. In this study we explored perceptions of the public and policy-makers about influences of neighbourhood factors on brain functioning, and how they should inform policy., Methods: Qualitative methods were used in three phases; the study ran in parallel with a quantitative study looking at neighbourhood influences on cognition. In phase one, focus groups were conducted with middle-aged (40-69) members of the public to inform statistical modelling. In phase two, similar focus groups were held in four case study areas chosen based on the modelling results. In phase three, interviews with people in public health and policy roles were conducted, including people in the case study sites., Results: Participants described effects on their cognition from community, culture and social interactions, access to green spaces and nature, upkeep and safety of the area, and pollution, traffic and noise. Solutions included better local consultation and involvement in policy and planning, support for community interactions and active and public transport, and education on cognition. There was little awareness, but much interest, from local policy-makers and implementers, about links between cognition and place. Barriers to implementation included lack of: effective engagement with local communities, local funding and joined-up health and neighbourhood policy., Conclusions: People can perceive impacts of neighbourhoods on brain functioning and suggest ways local areas can be improved to support cognitive health. There is support for the idea of population-level interventions to support cognitive health., (© 2023. BioMed Central Ltd., part of Springer Nature.)
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- 2023
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11. Asset mapping score analysis: a novel public health research methodology applied to maternal and child health resources in New Orleans.
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Healy J, Ramirez S, Knapp M, and Johnson C
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Background: Asset mapping is a commonly used method in public health to identify and describe the resources within a community. However, there is currently a lack of standardization in the methods used for asset mapping, which can make it difficult for users to apply the method and compare results between different studies. In this article, we present a new approach called Asset Mapping Score Analysis (AMSA), which is a framework for collecting and organizing data on community assets. We provide an example of the AMSA method through its application in the evaluation of maternal and child health resources in New Orleans, Louisiana., Results: The AMSA approach consists of five steps and results in a data collection tool that uses a scoring system to quantify the functional and content areas defined by the users. This method is flexible, reproducible, quantitative, inexpensive, and can be adapted to fit the needs of different geographic areas and fields of study. It can also be repeated over time to monitor changes in systems. We conducted a pilot study to examine the participation of local maternal and child health organizations in four functional areas (education, direct services, policy/advocacy, and research) and 22 content areas., Conclusions: In addition to describing the AMSA method and providing an example of its application, we also discuss the methodological issues involved in using the AMSA approach. These include considerations related to study design, data analysis, and interpreting results. We assess the strengths, limitations, and potential future directions of the AMSA method. Finally, we present the results of our AMSA study on maternal and child health organizations in New Orleans to illustrate the utility of this approach. Our findings suggest that the AMSA method is a valuable tool for understanding and characterizing the assets and resources within a community., (© 2023. The Author(s).)
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- 2023
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12. Implementing a home-based personalised cognitive rehabilitation intervention for people with mild-to-moderate dementia: GREAT into Practice.
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Clare L, Kudlicka A, Collins R, Evans S, Pool J, Henderson C, Knapp M, Litherland R, Oyebode J, and Woods R
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- Humans, Cognitive Training, Pandemics, State Medicine, Dementia psychology, COVID-19
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Background: Evidence-based rehabilitative interventions, if widely implemented, could equip people with dementia and their families to manage life with the condition and reduce the need for health and care services. The aim of this translational study, building on evidence from the GREAT randomised controlled trial, was to develop a foundation for implementing the GREAT Cognitive Rehabilitation intervention in community-based services for people with mild-to-moderate dementia., Methods: Key elements of the implementation strategy were identifying and supporting managerial and clinical leadership, conducting collaborative planning and target-setting, training and supporting practitioners, and providing external facilitation. We developed implementation plans with, and trained staff in, 14 organisations. We subsequently worked closely with 11 of these, 10 National Health Service organisations and one private home care provider, to support practitioners to deliver GREAT Cognitive Rehabilitation over a 12-month period. Outcome evaluation examined the perspectives of local steering group members, practitioners and service users, and the reach, effectiveness and cost of the intervention., Results: Implementation was disrupted by the COVID-19 pandemic, but six organisations completed at least six months of intervention delivery. Forty-one practitioners, mainly occupational therapists, provided the intervention, and 54 people with dementia completed a course of GREAT Cognitive Rehabilitation. Goal attainment by people with dementia exceeded levels of improvement seen in the original trial. People with dementia, carers, practitioners and steering group members all evaluated the intervention positively, and economic analysis indicated that the intervention could be provided at modest cost. However, we identified a range of mainly organisational barriers that impeded implementation and limited the potential for sustainability., Conclusions: GREAT Cognitive Rehabilitation benefits people with dementia, can be delivered effectively at modest cost in routine services, and is viewed positively by people with dementia, family carers and practitioners. To fully realise these benefits and achieve widespread and sustainable implementation, however, requires sufficient resources and a reorientation of service priorities towards preventive and rehabilitative approaches., Trial Registration: National Institute for Health Research (NIHR) Central Portfolio Management System, registration number 38994., (© 2023. The Author(s).)
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- 2023
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13. Genomic trajectories of a near-extinction event in the Chatham Island black robin.
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von Seth J, van der Valk T, Lord E, Sigeman H, Olsen RA, Knapp M, Kardailsky O, Robertson F, Hale M, Houston D, Kennedy E, Dalén L, Norén K, Massaro M, Robertson BC, and Dussex N
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- Humans, Selection, Genetic, Alleles, Genomics, Genetic Variation, Inbreeding, Genetic Drift
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Background: Understanding the micro--evolutionary response of populations to demographic declines is a major goal in evolutionary and conservation biology. In small populations, genetic drift can lead to an accumulation of deleterious mutations, which will increase the risk of extinction. However, demographic recovery can still occur after extreme declines, suggesting that natural selection may purge deleterious mutations, even in extremely small populations. The Chatham Island black robin (Petroica traversi) is arguably the most inbred bird species in the world. It avoided imminent extinction in the early 1980s and after a remarkable recovery from a single pair, a second population was established and the two extant populations have evolved in complete isolation since then. Here, we analysed 52 modern and historical genomes to examine the genomic consequences of this extreme bottleneck and the subsequent translocation., Results: We found evidence for two-fold decline in heterozygosity and three- to four-fold increase in inbreeding in modern genomes. Moreover, there was partial support for temporal reduction in total load for detrimental variation. In contrast, compared to historical genomes, modern genomes showed a significantly higher realised load, reflecting the temporal increase in inbreeding. Furthermore, the translocation induced only small changes in the frequency of deleterious alleles, with the majority of detrimental variation being shared between the two populations., Conclusion: Our results highlight the dynamics of mutational load in a species that recovered from the brink of extinction, and show rather limited temporal changes in mutational load. We hypothesise that ancestral purging may have been facilitated by population fragmentation and isolation on several islands for thousands of generations and may have already reduced much of the highly deleterious load well before human arrival and introduction of pests to the archipelago. The majority of fixed deleterious variation was shared between the modern populations, but translocation of individuals with low mutational load could possibly mitigate further fixation of high-frequency deleterious variation., (© 2022. The Author(s).)
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- 2022
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14. Development of a core outcome set for the evaluation of interventions to prevent COVID-19 in care homes (COS-COVID-PCARE Study).
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Shepherd V, Islam I, Wood F, Williamson PR, Goodman C, Bath PM, Thompson C, Knapp M, Gordon AL, and Hood K
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- Delphi Technique, Humans, Outcome Assessment, Health Care, Research Design, Treatment Outcome, COVID-19
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Background: People living in care homes have experienced devastating impact from COVID-19. As interventions to prevent the transmission of COVID-19 are developed and evaluated, there is an urgent need for researchers to agree on the outcomes used when evaluating their effectiveness. Having an agreed set of outcomes that are used in all relevant trials can ensure that study results can be compared., Objective: The aim of the study was to develop a core outcome set (COS) for trials assessing the effectiveness of pharmacological and non-pharmacological interventions for preventing COVID-19 infection and transmission in care homes., Methods: The study used established COS methodology. A list of candidate outcomes was identified by reviewing registered trials to evaluate interventions to prevent COVID-19 in care homes. Seventy key stakeholders participated in a Delphi survey, rating the candidate outcomes on a nine-point scale over two rounds, with the opportunity to propose additional outcomes. Stakeholders included care home representatives (n = 19), healthcare professionals (n = 20), people with personal experience of care homes (n = 7), researchers (n = 15) and others (n = 9). Outcomes were eligible for inclusion if they met an a priori threshold. A consensus meeting with stakeholders resulted in agreement of the final outcome set., Results: Following the Delphi and consensus meeting, twenty-four outcomes were recommended for inclusion. These are grouped across four domains of infection, severity of illness, mortality, and 'other' (intervention specific or life impact). Due to the considerable heterogeneity between care homes, residents, and interventions, the relevance and importance of outcomes may differ between trial contexts. Intervention-specific outcomes would be included only where relevant to a given trial, thus reducing the measurement burden., Conclusion: Using a rapid response approach, a COS for COVID-19 prevention interventions in care homes has been developed. Future work should focus on identifying instruments for measuring these outcomes, and the interpretation and application of the COS across different trial contexts. Beyond COVID-19, the outcomes identified in this COS may have relevance to other infectious diseases in care homes, and the rapid response approach may be useful as preparation for future pandemics., (© 2022. The Author(s).)
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- 2022
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15. Sustained improvements in EQ-5D utility scores and self-rated health status in patients with ankylosing spondylitis after spa treatment including low-dose radon - an analysis of prospective radon indication registry data.
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van der Zee-Neuen A, Strobl V, Dobias H, Fuchs J, Untner J, Foisner W, Knapp M, Edtinger S, Offenbächer M, Ritter M, Hölzl B, and Gaisberger M
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- Female, Health Status, Humans, Male, Middle Aged, Prospective Studies, Quality of Life, Registries, Surveys and Questionnaires, Radon therapeutic use, Spondylitis, Ankylosing therapy
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Background: Patients with ankylosing spondylitis (AS) have significantly lower quality of life (QoL) than the general population. Holistic interventions addressing QoL comprise spa- or balneotherapy including radon. These interventions have shown to be beneficial in reducing pain and improving QoL in AS-patients. We explored the association of spa-therapy including low-dose radon with QoL in AS-patients over an extended time period., Methods: Registry data collected for the "Radon indication registry" in the Austrian Gastein valley comprising data on QoL (EuroQol EQ-5D) directly before the treatment (baseline), directly(t1), 3 (t2); 6(t3) and 9(t4) months after the treatment, age, sex and body mass index (BMI) were analysed. Linear regression models explored the association of measurement time with 1) EQ-5D-5L utilities and 2) EuroQol visual analogue scale (VAS) score. Alterations of 0.05 (utilities) and 5.00 (VAS) were considered clinically relevant., Results: Two-hundred-ninety-one AS-patients were included in the analyses. Forty-four percent (n = 128) were women, the mean age was 52 (SD 10) and the average BMI was 26 (SD 4). Utilities (t1: 0.09 [0.07;0.11]; t2: 0.08 [0.06; 0.10]; t3: 0.06 [0.05;0.09]; t4: 0.04 [0.02;0.06]) and VAS (t1: 11.68 [9.38; 13.97]; t2: 12.20 [9.78; 14.61]; t3: 9.70 [7.24; 12.17]; t4: 6.11 [3.57; 8.65]) were significantly higher at all timepoints compared to baseline. Improvements were clinically relevant at all timepoints in case of the VAS and until 6 months after treatment for the utilities., Conclusion: AS-patients who received spa therapy including radon show significantly and clinically relevant improvements in Qol until 6-9 months after treatment., (© 2022. The Author(s).)
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- 2022
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16. Factors associated with change over time in quality of life of people with dementia: longitudinal analyses from the MODEM cohort study.
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King D, Farina N, Burgon C, Feeney Y, Berwald S, Bustard E, Gallaher L, Habibi R, Wittenberg R, Comas-Herrera A, Knapp M, and Banerjee S
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- Cohort Studies, Humans, Longitudinal Studies, Modems, Surveys and Questionnaires, Dementia diagnosis, Dementia epidemiology, Dementia psychology, Quality of Life psychology
- Abstract
Background: Research to date offers mixed evidence about the relationship between quality of life and severity of cognitive impairment in people with dementia. We aimed to investigate longitudinal changes in patient- and proxy-rated health-related quality of life (HRQL) by severity of dementia and explore factors associated with changes in HRQL over a one-year period. We used data from the MODEM longitudinal cohort study which recruited dyads of persons with clinically diagnosed dementia and their principal carer and interviewed them face-to-face at baseline and again 1 year later., Methods: Quota sampling was used to generate balanced numbers (target n = 100 for each severity level) of people with mild cognitive impairment (20+ on the standardised Mini-Mental State Examination (sMMSE)), moderate cognitive impairment (score 10 to 19), and severe cognitive impairment (score 0 to 9). Persons with dementia without an identifiable family carer or other informant (e.g., a formal/professional/paid carer) were excluded from the study. Participants answered a series of questions measuring their HRQL: DEMQOL, DEMQOL-proxy, EQ-5D-3 L, EQ-5D-3L proxy. Multiple regression models were built to understand the effects of baseline demographics and dementia symptoms (cognitive impairment, neuropsychiatric symptoms) on change in HRQL over 1 year., Results: Two hundred and forty-three dyads of people with clinically diagnosed dementia and carers completed baseline and follow-up interviews. Most measures of HRQL remaining relatively stable between time-points, but one index of HRQL, EQ-5D proxy, significantly declined. Depending on the HRQL measure, different factors were associated with change in HRQL. The only factor consistently associated with decline in HRQL (when compared to improvement) was having a diagnosis of a non-Alzheimer's dementia., Conclusions: Deterioration in HRQL is not an inevitable part of the dementia journey. However, people with non-Alzheimer's dementias may be more susceptible to HRQL decline. This may indicate that those with non-Alzheimer's dementia may benefit from specific support focussed on maintaining their quality of life., (© 2022. The Author(s).)
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- 2022
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17. Interventions to improve social circumstances of people with mental health conditions: a rapid evidence synthesis.
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Barnett P, Steare T, Dedat Z, Pilling S, McCrone P, Knapp M, Cooke E, Lamirel D, Dawson S, Goldblatt P, Hatch S, Henderson C, Jenkins R, K T, Machin K, Simpson A, Shah P, Stevens M, Webber M, Johnson S, and Lloyd-Evans B
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- Humans, Mental Health, Social Isolation psychology, Ill-Housed Persons, Mental Disorders psychology, Mental Disorders therapy, Mental Health Services
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Background: Poor social circumstances can induce, exacerbate and prolong symptoms of mental health conditions, while having a mental health condition can also lead to worse social outcomes. Many people with mental health conditions prioritise improvement in social and functional outcomes over reduction in clinical symptoms. Interventions that improve social circumstances in this population should thus be considered a priority for research and policy., Methods: This rapid evidence synthesis reports on randomised controlled trials of interventions to improve social circumstances across eight social domains (Housing and homelessness; money and basic needs; work and education; social isolation and connectedness; family, intimate and caring relationships; victimisation and exploitation; offending; and rights, inclusion and citizenship) in people with mental health conditions. Economic evaluations were also identified. A comprehensive, stepped search approach of the Cochrane library, MEDLINE, Embase, PsycINFO, Web of Science and Scopus was conducted., Results: One systematic review and 102 randomised controlled trials were included. We did not find RCT evidence for interventions to improve family, intimate and caring relationships and only one or two trials for each of improving money and basic needs, victimisation and exploitation, and rights, inclusion and citizenship. Evidence from successful interventions in improving homelessness (Housing First) and employment (Individual Placement and Support) suggests that high-intensity interventions which focus on the desired social outcome and provide comprehensive multidisciplinary support could influence positive change in social circumstances of people with mental health conditions. Objective social isolation could be improved using a range of approaches such as supported socialisation and social skills training but interventions to reduce offending showed few benefits. Studies with cost and cost-effectiveness components were generally supportive of interventions to improve housing and vocational outcomes. More research is needed to ensure that social circumstances accompanied by high risks of further exacerbation of mental health conditions are adequately addressed., Conclusions: Although there is a large body of literature examining how to support some aspects of life for people with mental health conditions, more high-quality evidence is required in other social domains. Integration into mental health services of interventions targeting social circumstances could significantly improve a number of social outcomes., (© 2022. The Author(s).)
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- 2022
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18. Pharmacist led homeless outreach engagement and non-medical independent prescribing (Rx) (PHOENIx) intervention for people experiencing homelessness: a non- randomised feasibility study.
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Lowrie R, Stock K, Lucey S, Knapp M, Williamson A, Montgomery M, Lombard C, Maguire D, Allan R, Blair R, Paudyal V, and Mair FS
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- Adult, Appointments and Schedules, Feasibility Studies, General Practitioners, Humans, Male, Mental Health statistics & numerical data, Middle Aged, Outcome Assessment, Health Care, Referral and Consultation statistics & numerical data, Scotland, Community Pharmacy Services organization & administration, Community-Institutional Relations, Ill-Housed Persons statistics & numerical data, Pharmacists organization & administration, Professional-Patient Relations
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Background: Homelessness and associated mortality and multimorbidity rates are increasing. Systematic reviews have demonstrated a lack of complex interventions that decrease unscheduled emergency health services utilisation or increase scheduled care. Better evidence is needed to inform policy responses. We examined the feasibility of a complex intervention (PHOENIx: Pharmacist led Homeless Outreach Engagement Nonmedical Independent prescribing (Rx)) to inform a subsequent pilot randomised controlled trial (RCT)., Methods: Non-randomised trial with Usual Care (UC) comparator group set in Greater Glasgow and Clyde Health Board, Scotland. Participants were adult inpatients experiencing homelessness in a city centre Glasgow hospital, referred to the PHOENIx team at the point of hospital discharge, from 19th March 2018 until 6th April 2019. The follow up period for each patient started on the day the patient was first seen (Intervention group) or first referred (UC), until 24th August 2019, the censor date for all patients. All patients were offered and agreed to receive serial consultations with the PHOENIx team (NHS Pharmacist prescriber working with Simon Community Scotland (third sector homeless charity worker)). Patients who could not be reached by the PHOENIx team were allocated to the UC group. The PHOENIx intervention included assessment of physical/mental health, addictions, housing, benefits and social activities followed by pharmacist prescribing with referral to other health service specialities as necessary. All participants received primary (including specialist homelessness health service based general practitioner care, mental health and addictions services) and secondary care. Main outcome measures were rates of: recruitment; retention; uptake of the intervention; and completeness of collected data, from recruitment to censor date., Results: Twenty four patients were offered and agreed to participate; 12 were reached and received the intervention as planned with a median 7.5 consultations (IQR3.0-14.2) per patient. The pharmacist prescribed a median of 2 new (IQR0.3-3.8) and 2 repeat (1.3-7.0) prescriptions per patient; 10(83%) received support for benefits, housing or advocacy. Twelve patients were not subsequently contactable after leaving hospital, despite agreeing to participate, and were assigned to UC. Two patients in the UC group died of drug/alcohol overdose during follow up; no patients in the Intervention group died. All 24 patients were retained in the intervention or UC group until death or censor date and all patient records were accessible at follow up: 11(92%) visited ED in both groups, with 11(92%) hospitalisations in intervention group, 9(75%) UC. Eight (67%) intervention group patients and 3(25%) UC patients attended scheduled out patient appointments., Conclusions: Feasibility testing of the PHOENIx intervention suggests merit in a subsequent pilot RCT.
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- 2021
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19. Self-management and HeAlth Promotion in Early-stage dementia with e-learning for carers (SHAPE): study protocol for a multi-centre randomised controlled trial.
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Testad I, Clare L, Anstey K, Selbæk G, Bjørkløf GH, Henderson C, Dalen I, Gjestsen MT, Rhodes S, Røsvik J, Bollen J, Amos J, Kajander MM, Quinn L, and Knapp M
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- Caregivers, Health Promotion, Humans, Multicenter Studies as Topic, Randomized Controlled Trials as Topic, Computer-Assisted Instruction, Dementia therapy, Self-Management
- Abstract
Background: With an increasing number of people with dementia worldwide and limited advancement in medical treatments, the call for new and cost-effective approaches is crucial. The utility of self-management has been proven in certain chronic conditions. However, very little work has been undertaken regarding self-management in people with dementia., Methods: The SHAPE trial will include 372 people with mild to moderate dementia to evaluate the effectiveness and cost-effectiveness of an educational programme combining approaches of self-management, health promotion, and e-learning for care partners. The study is a multi-site, single-randomised, controlled, single-blinded trial with parallel arms. The intervention arm is compared with treatment as usual. The intervention comprises a 10-week course delivered as group sessions for the participants with dementia. The sessions are designed to develop self-management skills and to provide information on the nature of the condition and the development of healthy behaviours in a supportive learning environment. An e-learning course will be provided for care partners which covers similar and complementary material to that discussed in the group sessions for the participant with dementia., Discussion: This trial will explore the effect of the SHAPE group intervention on people with mild to moderate dementia in terms of self-efficacy and improvement in key health and mental health outcomes and cost-effectiveness, along with carer stress and knowledge of dementia., Trial Registration: ClinicalTrials.gov Identifier: NCT04286139, registered prospectively February 26, 2020, https://clinicaltrials.gov/ct2/show/NCT04286139.
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- 2020
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20. The high cost of unpaid care by young people:health and economic impacts of providing unpaid care.
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Brimblecombe N, Knapp M, King D, Stevens M, and Cartagena Farias J
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- Adolescent, Adult, Data Collection, England, Family Characteristics, Female, Health Expenditures, Humans, Income, Longitudinal Studies, Male, Young Adult, Caregivers economics, Employment economics, Social Welfare
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Background: Many countries worldwide have experienced reductions in provision of formal long-term care services amidst rising need for care. Provision of unpaid care, meanwhile, has grown. This includes care provided by young people. Care responsibilities can affect a young people's health, education and employment. We aimed to investigate the impacts on the employment and health of young people aged 16 to 25 of providing care, and the associated individual and public expenditure costs., Methods: We examined employment, earnings and health impacts for individuals, and a range of economic impacts for society, focusing on young people aged 16 to 25 providing unpaid care in England. We applied regression analysis to data from three waves of the UK Household Longitudinal Study (2013/2015, 2014/2016, and 2015/2017) to compare employment and health outcomes among carers and non-carers, and two-part Generalised Linear Models to estimate costs. To address potential selection bias, we then used propensity score matching methods to explore outcomes for a matched sub-sample of young adult carers who started providing care at baseline (2014/16)., Results: Young people aged 16 to 25 who provided care at baseline (2014/16) were less likely to be in employment, had lower earnings from paid employment, and had poorer mental and physical health at follow-up (2015/17) compared to young people of the same age who were not providing care at baseline.. There were substantial costs to the state of young adults providing care from lower tax revenue, welfare benefit payments, and health service use. In aggregate, these costs amounted to £1048 million annually in 2017., Conclusions: High individual impacts and costs to the state of providing unpaid care, and the potential of such impacts to compound existing inequalities, have many implications for policy and practice in the health, social care, employment and welfare benefits sectors. In particular, the findings reinforce the case for reducing the need for young people to provide unpaid care, for example through better provision of formal care services, and to provide ongoing support for those young people who do provide care. As impacts are seen in a number of domains, support needs to be multidimensional.
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- 2020
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21. Disease severity accounts for minimal variance of quality of life in people with dementia and their carers: analyses of cross-sectional data from the MODEM study.
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Farina N, King D, Burgon C, Berwald S, Bustard E, Feeney Y, Habibi R, Comas-Herrera A, Knapp M, and Banerjee S
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- Caregivers, Cohort Studies, Cross-Sectional Studies, Humans, Modems, Psychometrics, Severity of Illness Index, Surveys and Questionnaires, Dementia diagnosis, Quality of Life
- Abstract
Background: Due to the progressive nature of dementia, it is important to understand links between disease severity and health-related outcomes. The aim of this study is to explore the relationship between disease severity and the quality of life (QoL) of people with dementia and their family carers using a number of disease-specific and generic measures., Methods: In the MODEM cohort study, three-hundred and seven people with clinically diagnosed dementia and their carers were recruited on a quota basis to provide equal numbers of people with mild (standardised Mini-Mental State Examination (sMMSE), n = 110), moderate (sMMSE 10-19, n = 100), and severe (sMMSE 0-9, n = 97) cognitive impairment. A series of multiple regression models were created to understand the associations between dementia severity and the QoL of people with dementia and the QoL of their carers. QoL was measured using self- (DEMQOL, EQ-5D, CASP-19) and proxy-reports (DEMQOL-Proxy, EQ-5D) of disease-specific and generic QoL of the person with dementia. Carer generic QoL was measured by self-report (EQ-5D, SF-12)., Results: Disease severity, as measured by the sMMSE, was not significantly associated with the QoL of the person with dementia or the carer (p > 0.05), even after controlling for potential confounding variables for self-reported instruments. Proxy measures (rated by the carer) differed systematically in that there were small, but statistically significant proportions of the variance of QoL was explained by severity of cognitive impairment in multiple adjusted models. We also found little in the way of statistically significant relationships between the QoL of people with dementia and that of their carers except between DEMQOL-Proxy scores and the carer EQ-5D scores and carer SF-12 mental sub-scores., Conclusions: The data generated supports the somewhat counterintuitive argument that severity of cognitive impairment (and therefore severity of dementia) is not associated with lower QoL for the person with dementia when self-report measures are used. However, in absolute terms, as judged by the variance in the multivariate models, it is clear that the contribution of dementia severity to the QoL of people with dementia is minimal whatever the measurement used, be it self- or proxy-rated, or disease-specific or generic.
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- 2020
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22. Access to health care for older people with intellectual disability: a modelling study to explore the cost-effectiveness of health checks.
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Bauer A, Taggart L, Rasmussen J, Hatton C, Owen L, and Knapp M
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- Adult, Aged, Cost-Benefit Analysis, England epidemiology, Female, Humans, Male, Middle Aged, Quality of Life, Quality-Adjusted Life Years, Continuity of Patient Care economics, Health Services Accessibility economics, Intellectual Disability economics, Persons with Mental Disabilities statistics & numerical data
- Abstract
Background: Whilst people with intellectual disability grow older, evidence has emerged internationally about the largely unmet health needs of this specific ageing population. Health checks have been implemented in some countries to address those health inequalities. Evaluations have focused on measuring process outcomes due to challenges measuring quality of life outcomes. In addition, the cost-effectiveness is currently unknown. As part of a national guideline for this population we sought to explore the likely cost-effectiveness of annual health checks in England., Methods: Decision-analytical Markov modelling was used to estimate the cost-effectiveness of a strategy, in which health checks were provided for older people with intellectual disability, when compared with standard care. The approach we took was explorative. Individual models were developed for a selected range of health conditions, which had an expected high economic impact and for which sufficient evidence was available for the modelling. In each of the models, hypothetical cohorts were followed from 40 yrs. of age until death. The outcome measure was cost per quality-adjusted life-year (QALY) gained. Incremental cost-effectiveness ratios (ICER) were calculated. Costs were assessed from a health provider perspective and expressed in 2016 GBP. Costs and QALYs were discounted at 3.5%. We carried out probabilistic sensitivity analysis. Data from published studies as well as expert opinion informed parameters., Results: Health checks led to a mean QALY gain of 0.074 (95% CI 0.072 to 0.119); and mean incremental costs of £4787 (CI 95% 4773 to 5017). For a threshold of £30,000 per QALY, health checks were not cost-effective (mean ICER £85,632; 95% CI 82,762 to 131,944). Costs of intervention needed to reduce from £258 to under £100 per year in order for health checks to be cost-effective., Conclusion: Whilst findings need to be considered with caution as the model was exploratory in that it was based on assumptions to overcome evidence gaps, they suggest that the way health systems deliver care for vulnerable populations might need to be re-examined. The work was carried out as part of a national guideline and informed recommendations about system changes to achieve more equal health care provisions.
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- 2019
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23. Sensory integration therapy versus usual care for sensory processing difficulties in autism spectrum disorder in children: study protocol for a pragmatic randomised controlled trial.
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Randell E, McNamara R, Delport S, Busse M, Hastings RP, Gillespie D, Williams-Thomas R, Brookes-Howell L, Romeo R, Boadu J, Ahuja AS, McKigney AM, Knapp M, Smith K, Thornton J, and Warren G
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- Adaptation, Psychological, Age Factors, Autism Spectrum Disorder diagnosis, Autism Spectrum Disorder psychology, Child, Child, Preschool, Cues, Female, Humans, Male, Motor Skills, Pilot Projects, Pragmatic Clinical Trials as Topic, Social Behavior, Time Factors, Treatment Outcome, United Kingdom, Autism Spectrum Disorder therapy, Child Behavior, Child Development, Occupational Therapy methods, Play Therapy methods, Sensory Thresholds
- Abstract
Background: Autism spectrum disorder (ASD) is a common lifelong condition affecting 1 in 100 people. ASD affects how a person relates to others and the world around them. Difficulty responding to sensory information (noise, touch, movement, taste, sight) is common, and might include feeling overwhelmed or distressed by loud or constant low-level noise (e.g. in the classroom). Affected children may also show little or no response to these sensory cues. These 'sensory processing difficulties' are associated with behaviour and socialisation problems, and affect education, relationships, and participation in daily life. Sensory integration therapy (SIT) is a face-to-face therapy or treatment provided by trained occupational therapists who use play-based sensory-motor activities and the just-right challenge to influence the way the child responds to sensation, reducing distress, and improving motor skills, adaptive responses, concentration, and interaction with others. With limited research into SIT, this protocol describes in detail how the intervention will be defined and evaluated., Methods: This is a two-arm pragmatic individually 1:1 randomised controlled trial with an internal pilot of SIT versus usual care for primary school aged children (aged 4 to 11 years) with ASD and sensory processing difficulties; 216 children will be recruited from multiple sources. Therapy will be delivered in clinics meeting full fidelity criteria for manualised SIT over 26 weeks (face-to-face sessions: two per week for 10 weeks, two per month for 2 months; telephone call: one per month for 2 months). Follow-up assessments will be completed at 6 and 12 months post-randomisation. Prior to recruitment, therapists will be invited to participate in focus groups/interviews to explore what is delivered as usual care in trial regions; carers will be invited to complete an online survey to map out their experience of services. Following recruitment, carers will be given diaries to record their contact with services. Following intervention, carer and therapist interviews will be completed., Discussion: Results of this trial will provide high-quality evidence on the clinical and cost effectiveness of SIT aimed at improving behavioural, functional, social, educational, and well-being outcomes for children and well-being outcomes for carers and families., Trial Registration: ISRCTN14716440 . Registered on 8 November 2016.
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- 2019
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24. Protocol for the IDEAL-2 longitudinal study: following the experiences of people with dementia and their primary carers to understand what contributes to living well with dementia and enhances active life.
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Silarova B, Nelis SM, Ashworth RM, Ballard C, Bieńkiewicz M, Henderson C, Hillman A, Hindle JV, Hughes JC, Lamont RA, Litherland R, Jones IR, Jones RW, Knapp M, Kotting P, Martyr A, Matthews FE, Morris RG, Quinn C, Regan J, Rusted JM, van den Heuvel EA, Victor CR, Wu YT, and Clare L
- Subjects
- Activities of Daily Living, Aged, Aged, 80 and over, Clinical Protocols, Female, Health Services statistics & numerical data, Health Services Needs and Demand, Humans, Longitudinal Studies, Male, Middle Aged, Surveys and Questionnaires, United Kingdom, Caregivers psychology, Dementia psychology, Dementia therapy, Quality of Life
- Abstract
Background: There is a major need for longitudinal research examining the experiences of people with dementia and their primary carers, as relatively little is known about how the factors associated with capability to 'live well' vary over time. The main aim of the IDEAL-2 study is to investigate how and why, over time, people with dementia and their primary carers might vary in their capability to live well with dementia, whilst exploring both their use of health and care services and their unmet needs., Methods: IDEAL-2 will build on the Improving the experience of Dementia and Enhancing Active Life (IDEAL) cohort of 1547 people (who, at recruitment between July 2014 and July 2016, had mild-to-moderate dementia), and their 1283 primary carers in Great Britain. The existing cohort will be enriched with additional participants with mild-to-moderate dementia (and their primary carers where available and willing) from the following groups: people with rarer forms of dementia, and/or those who are ≥90 years or < 65 years of age at time of recruitment. We will assess the primary outcome, capability to live well with dementia, and the factors influencing it using questionnaires at yearly intervals for 3 years. Additionally, we will seek to link the cohort data with administrative data to obtain information about health service use. Some participants will be invited for in-depth face-to-face interviews. The cohort study will be supplemented by linked research focusing on: the co-production of new measures of living well; including the perspectives of people with advanced dementia living in residential care settings; including people with dementia from black, Asian, and minority ethnic groups; and understanding the experience of people living with undiagnosed dementia., Discussion: IDEAL-2 will provide evidence about the key indicators of, and factors associated with, living well over the course of dementia and how these differ for particular subgroups. It will tell us which combinations of services and support are most beneficial and cost-effective. Moreover, the IDEAL-2 study will gather evidence from under-researched groups of people with dementia, who are likely to have their own distinct perceptions of living well.
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- 2018
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25. Whose job? The staffing of advance care planning support in twelve international healthcare organizations: a qualitative interview study.
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Dixon J and Knapp M
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- Advance Care Planning organization & administration, Advance Care Planning statistics & numerical data, Delivery of Health Care organization & administration, Health Personnel statistics & numerical data, Health Policy trends, Humans, Personnel Staffing and Scheduling statistics & numerical data, Qualitative Research, Workforce, Advance Directives trends, Internationality, Personnel Staffing and Scheduling standards
- Abstract
Background: ACP involving a facilitated conversation with a health or care professional is more effective than document completion alone. In policy, there is an expectation that health and care professionals will provide ACP support, commonly within their existing roles. However, the potential contributions of different professionals are outlined only broadly in policy and guidance. Research on opportunities and barriers for involving different professionals in providing ACP support, and feasible models for doing so, is currently lacking., Methods: We identified twelve healthcare organizations aiming to offer system-wide ACP support in the United States, Canada, Australia and New Zealand. In each, we conducted an average 13 in-depth interviews with senior managers, ACP leads, dedicated ACP facilitators, physicians, nurses, social workers and other clinical and non-clinical staff. Interviews were analyzed thematically using NVivo software., Results: Organizations emphasized leadership for ACP support, including strategic support from senior managers and intensive day-to-day support from ACP leads, to support staff to deliver ACP support within their existing roles. Over-reliance on dedicated facilitators was not considered sustainable or scalable. We found many professionals, from all backgrounds, providing ACP support. However, there remained barriers, particularly for facilitating ACP conversations. A significant barrier for all professionals was lack of time. Physicians sometimes had poor communication skills, misunderstood medico-legal aspects and tended to have conversations of limited scope late in the disease trajectory. However, they could also have concerns about the appropriateness of ACP conversations conducted by others. Social workers had good facilitation skills and understood legal aspects but needed more clinical support than nurses. While ACP support provided alongside and as part of other care was common, ACP conversations in this context could easily get squeezed out or become fragmented. Referrals to other professionals could be insecure. Team-based models involving a physician and a nurse or social worker were considered cost-effective and supportive of good quality care but could require some additional resource., Conclusions: Effective staffing of ACP support is likely to require intensive local leadership, attention to physician concerns while avoiding an entirely physician-led approach, some additional resource and team-based frameworks, including in evolving models of care for chronic illness and end of life.
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- 2018
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26. Characteristics of patients with depression initiating or switching antidepressant treatment: baseline analyses of the PERFORM cohort study.
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Haro JM, Lamy FX, Jönsson B, Knapp M, Brignone M, Caillou H, Chalem Y, Hammer-Helmich L, Rive B, and Saragoussi D
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- Adult, Anxiety psychology, Cross-Sectional Studies, Depression psychology, Europe, Female, Humans, Male, Middle Aged, Prospective Studies, Quality of Life, Antidepressive Agents therapeutic use, Depressive Disorder, Major drug therapy, Depressive Disorder, Major psychology, Drug Substitution, Drug-Seeking Behavior
- Abstract
Background: Patients who require a switch in their antidepressant therapy may have different clinical profiles and treatment needs compared with patients initiating or maintaining a first-line antidepressant therapy., Methods: The Prospective Epidemiological Research on Functioning Outcomes Related to Major depressive disorder (MDD) (PERFORM) study was a 2-year observational cohort study in outpatients with MDD in five European countries. Enrolled patients were either initiating or undergoing the first switch to an antidepressant monotherapy. Baseline data on patients' clinical status, functioning, productivity, quality of life and medical-resource use were compared in a cross-sectional baseline analysis., Results: A total of 1402 patients were enrolled, of whom 1159 (82.7%) provided analysable baseline data. The majority (78.7%) of the analysable population were initiating antidepressant treatment and most (83.6%) were enrolled and followed up by general practitioners. Compared with patients initiating antidepressants, those switching antidepressants (21.3%) tended to have more severe depressive symptoms, greater anxiety, worse health-related quality of life, greater functional impairment, greater medical-resource use and had a different medical history. Limitations included an over-representation of switches due to lack of efficacy among patients who were switching treatment, as patients were selected based on presence of depressive symptoms., Conclusions: Patients with MDD who are switching treatment for the first time have a different profile and different depression-associated health needs compared with those initiating treatment. Therapeutic management should therefore be adapted for patients who switch., Trial Registration: ClinicalTrials.gov NCT01427439 ; Retrospectively registered 26 August 2011.
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- 2018
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27. PERFECTED enhanced recovery (PERFECT-ER) care versus standard acute care for patients admitted to acute settings with hip fracture identified as experiencing confusion: study protocol for a feasibility cluster randomized controlled trial.
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Hammond SP, Cross JL, Shepstone L, Backhouse T, Henderson C, Poland F, Sims E, MacLullich A, Penhale B, Howard R, Lambert N, Varley A, Smith TO, Sahota O, Donell S, Patel M, Ballard C, Young J, Knapp M, Jackson S, Waring J, Leavey N, Howard G, and Fox C
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- Clinical Protocols, Confusion diagnosis, Confusion psychology, Feasibility Studies, Hip Fractures diagnosis, Hip Fractures physiopathology, Humans, Recovery of Function, Research Design, State Medicine organization & administration, Time Factors, Treatment Outcome, United Kingdom, Checklist, Confusion therapy, Delivery of Health Care, Integrated organization & administration, Geriatrics organization & administration, Hip Fractures therapy
- Abstract
Background: Health and social care provision for an ageing population is a global priority. Provision for those with dementia and hip fracture has specific and growing importance. Older people who break their hip are recognised as exceptionally vulnerable to experiencing confusion (including but not exclusively, dementia and/or delirium and/or cognitive impairment(s)) before, during or after acute admissions. Older people experiencing hip fracture and confusion risk serious complications, linked to delayed recovery and higher mortality post-operatively. Specific care pathways acknowledging the differences in patient presentation and care needs are proposed to improve clinical and process outcomes., Methods: This protocol describes a multi-centre, feasibility, cluster-randomised, controlled trial (CRCT) to be undertaken across ten National Health Service hospital trusts in the UK. The trial will explore the feasibility of undertaking a CRCT comparing the multicomponent PERFECTED enhanced recovery intervention (PERFECT-ER), which acknowledges the differences in care needs of confused older patients experiencing hip fracture, with standard care. The trial will also have an integrated process evaluation to explore how PERFECT-ER is implemented and interacts with the local context. The study will recruit 400 hip fracture patients identified as experiencing confusion and will also recruit "suitable informants" (individuals in regular contact with participants who will complete proxy measures). We will also recruit NHS professionals for the process evaluation. This mixed methods design will produce data to inform a definitive evaluation of the intervention via a large-scale pragmatic randomised controlled trial (RCT)., Discussion: The trial will provide a preliminary estimate of potential efficacy of PERFECT-ER versus standard care; assess service delivery variation, inform primary and secondary outcome selection, generate estimates of recruitment and retention rates, data collection difficulties, and completeness of outcome data and provide an indication of potential economic benefits. The process evaluation will enhance knowledge of implementation delivery and receipt., Trial Registration: ISRCTN, 99336264 . Registered on 5 September 2016.
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- 2017
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28. MODEM: A comprehensive approach to modelling outcome and costs impacts of interventions for dementia. Protocol paper.
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Comas-Herrera A, Knapp M, Wittenberg R, Banerjee S, Bowling A, Grundy E, Jagger C, Farina N, Lombard D, Lorenz K, and McDaid D
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- Cost-Benefit Analysis, Dementia therapy, England, Female, Humans, Male, Quality of Life, Caregivers economics, Caregivers psychology, Dementia economics, Models, Economic
- Abstract
Background: The MODEM project (A comprehensive approach to MODelling outcome and costs impacts of interventions for DEMentia) explores how changes in arrangements for the future treatment and care of people living with dementia, and support for family and other unpaid carers, could result in better outcomes and more efficient use of resources., Methods: MODEM starts with a systematic mapping of the literature on effective and (potentially) cost-effective interventions in dementia care. Those findings, as well as data from a cohort, will then be used to model the quality of life and cost impacts of making these evidence-based interventions more widely available in England over the period from now to 2040. Modelling will use a suite of models, combining microsimulation and macrosimulation methods, modelling the costs and outcomes of care, both for an individual over the life-course from the point of dementia diagnosis, and for individuals and England as a whole in a particular year. Project outputs will include an online Dementia Evidence Toolkit, making evidence summaries and a literature database available free to anyone, papers in academic journals and other written outputs, and a MODEM Legacy Model, which will enable local commissioners of services to apply the model to their own populations., Discussion: Modelling the effects of evidence-based cost-effective interventions and making this information widely available has the potential to improve the health and quality of life both of people with dementia and their carers, while ensuring that resources are used efficiently.
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- 2017
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29. A randomised controlled trial of calcium channel blockade (CCB) with Amlodipine For the treatment oF subcortical ischaEmic vasCular demenTia (AFFECT): study protocol.
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Greenan C, Murphy L, Yu LM, Kehoe PG, Coulthard E, Bath P, Stewart R, Jones R, Corbett A, Thomas A, Connelly P, Arrojo F, Canning R, Wallach S, Henderson C, McGuinness B, O'Sullivan M, Holmes C, Knapp M, Ballard C, and Passmore P
- Subjects
- Activities of Daily Living, Amlodipine adverse effects, Brain Ischemia diagnosis, Brain Ischemia physiopathology, Brain Ischemia psychology, Calcium Channel Blockers adverse effects, Clinical Protocols, Cognition drug effects, Dementia, Vascular diagnosis, Dementia, Vascular physiopathology, Dementia, Vascular psychology, Double-Blind Method, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Neuropsychological Tests, Quality of Life, Research Design, Time Factors, Treatment Outcome, United Kingdom, Amlodipine therapeutic use, Brain Ischemia drug therapy, Calcium Channel Blockers therapeutic use, Dementia, Vascular drug therapy
- Abstract
Background: Vascular dementia is the second most common cause of dementia affecting over seven million people worldwide, yet there are no licensed treatments. There is an urgent need for a clinical trial in this patient group. Subcortical ischaemic vascular dementia is the most common variant of vascular dementia. This randomised trial will investigate whether use of calcium channel blockade with amlodipine, a commonly used agent, can provide the first evidence-based pharmacological treatment for subcortical ischaemic vascular dementia., Methods/design: This is a randomised controlled trial of calcium channel blockade with Amlodipine For the treatment oF subcortical ischaEmic vasCular demenTia (AFFECT) to test the hypothesis that treatment with amlodipine can improve outcomes for these patients in a phase IIb, multi-centre, double-blind, placebo-controlled randomised trial. The primary outcome is the change from baseline to 12 months in the Vascular Dementia Assessment Scale cognitive subscale (VADAS-cog). Secondary outcomes include cognitive function, executive function, clinical global impression of change, change in blood pressure, quantitative evaluation of lesion accrual based on magnetic resonance imaging (MRI), health-related quality of life, activities of daily living, non-cognitive dementia symptoms, care-giver burden and care-giver health-related quality of life, cost-effectiveness and institutionalisation. A total of 588 patients will be randomised in a 1:1 ratio to either amlodipine or placebo, recruited from sites across the UK and enrolled in the trial for 104 weeks., Discussion: There are no treatments licensed for vascular dementia. The most common subtype is subcortical ischaemic vascular dementia (SIVD). This study is designed to investigate whether amlodipine can produce benefits compared to placebo in established SIVD. It is estimated that the numbers of people with VaD and SIVD will increase globally in the future and the results of this study should inform important treatment decisions., Trial Registration: Current Controlled Trials ISRCTN31208535 . Registered on 7 March 2014.
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- 2016
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30. Cost-effectiveness of active monitoring versus antidepressants for major depression in primary health care: a 12-month non-randomized controlled trial (INFAP study).
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Rubio-Valera M, Beneitez I, Peñarrubia-María MT, Luciano JV, Mendive JM, McCrone P, Knapp M, Sabés-Figuera R, Kocyan K, García-Campayo J, and Serrano-Blanco A
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- Adult, Antidepressive Agents therapeutic use, Cost-Benefit Analysis, Depressive Disorder, Major therapy, Female, General Practice methods, Humans, Male, Middle Aged, Practice Patterns, Physicians' economics, Prospective Studies, Quality of Life, Spain, Surveys and Questionnaires, Treatment Outcome, Antidepressive Agents economics, Depressive Disorder, Major economics, General Practice economics, Watchful Waiting economics
- Abstract
Background: Clinical practice guidelines for the treatment of major depressive disorder (MDD) recommend antidepressants for patients with moderate-severe depression and active monitoring for patients with mild-moderate symptoms. The feasibility and efficiency of active monitoring has not been proven conclusively. The aim of this study is to evaluate the cost-effectiveness of active monitoring in comparison to antidepressants for primary care patients with mild-moderate MDD., Methods/design: This is a 12-month follow-up multicenter observational prospective controlled trial. Patients are enrolled in 12 primary care centers in Barcelona (Spain). Eligible patients are adults (≥18 years-old) with a new episode of MDD that sign a written consent to participate. This is a naturalistic study in which general practitioners (GPs) use their professional judgment to allocate patients into active monitoring or antidepressants groups. GPs treat the patients following their clinical criteria. At baseline, GPs complete a questionnaire (sociodemographic/job characteristics, training, attitude towards depression, interest on mental health and participation in communication groups). Patients' measurements take place at baseline and after six and 12 months. Main outcome measures include severity of depression (PHQ-9), health-related quality of life (EuroQol-5D) and use of healthcare and social care services (Client Service Receipt Inventory). Secondary outcomes include diagnosis of MDD according to DSM-IV diagnostic criteria (SCID-I), disability (WHO-DAS), anxiety (BAI), comorbidities, medication side-effects and beliefs about medicines (BMQ). The analysis will be done according to the intention to treat analysis. Missing data will be imputed using multiple imputation by chained equations. To minimize the bias resulting from the lack of randomization, a propensity score will be used. Incremental effects and costs between groups will be modelled in each of the imputed databases using multivariate generalized linear models and then combined as per Rubin's rules. Propensity scores will be used to adjust the models. Incremental cost-effectiveness ratios will be calculated by dividing the difference in costs between groups by the difference in effects. To deal with the uncertainty, resampling techniques with bootstrapping will be used and cost-effectiveness planes and cost-effectiveness acceptability curves will be constructed. A series of sensitivity analyses will be performed., Discussion: Given the high burden and costs generated by depressive disorder, it is important that general practitioners treat major depression efficiently. Recent evidence has suggested that antidepressants have low benefits for patients with mild to moderate major depression. For such cases of depression, active monitoring exists as a treatment option, but it is not without difficulties for implementation and its effectiveness and efficiency have not been demonstrated conclusively. The results of the study will provide information on which is the most efficient approach to treat patients with mild to moderate major depression in primary care., Trial Registration: ClinicalTrials.gov: NCT02245373.
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- 2015
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31. Improving the experience of dementia and enhancing active life--living well with dementia: study protocol for the IDEAL study.
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Clare L, Nelis SM, Quinn C, Martyr A, Henderson C, Hindle JV, Jones IR, Jones RW, Knapp M, Kopelman MD, Morris RG, Pickett JA, Rusted JM, Savitch NM, Thom JM, and Victor CR
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- Activities of Daily Living psychology, Adaptation, Psychological, Caregivers psychology, Dementia nursing, Female, Humans, Interpersonal Relations, Male, Middle Aged, Residence Characteristics, United Kingdom, Dementia psychology, Personal Satisfaction, Quality of Life psychology, Self Concept
- Abstract
Background: Enabling people with dementia and carers to 'live well' with the condition is a key United Kingdom policy objective. The aim of this project is to identify what helps people to live well or makes it difficult to live well in the context of having dementia or caring for a person with dementia, and to understand what 'living well' means from the perspective of people with dementia and carers., Methods/design: Over a two-year period, 1500 people with early-stage dementia throughout Great Britain will be recruited to the study, together with a carer wherever possible. All the participants will be visited at home initially and again 12 months and 24 months later. This will provide information about the way in which well-being, life satisfaction and quality of life are affected by social capitals, assets and resources, the challenges posed by dementia, and the ways in which people adjust to and cope with these challenges. A smaller group will be interviewed in more depth., Discussion: The findings will lead to recommendations about what can be done by individuals, communities, health and social care practitioners, care providers and policy-makers to improve the likelihood of living well with dementia.
- Published
- 2014
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32. Cost-utility of cognitive behavioral therapy versus U.S. Food and Drug Administration recommended drugs and usual care in the treatment of patients with fibromyalgia: an economic evaluation alongside a 6-month randomized controlled trial.
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Luciano JV, D'Amico F, Cerdà-Lafont M, Peñarrubia-María MT, Knapp M, Cuesta-Vargas AI, Serrano-Blanco A, and García-Campayo J
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- Adult, Analgesics economics, Cognitive Behavioral Therapy economics, Cost-Benefit Analysis, Drug Therapy, Combination, Duloxetine Hydrochloride, Female, Health Care Costs statistics & numerical data, Humans, Male, Middle Aged, Pregabalin, Quality of Life, Quality-Adjusted Life Years, Surveys and Questionnaires, Thiophenes economics, Thiophenes therapeutic use, Time Factors, Treatment Outcome, United States, United States Food and Drug Administration, gamma-Aminobutyric Acid analogs & derivatives, gamma-Aminobutyric Acid economics, gamma-Aminobutyric Acid therapeutic use, Analgesics therapeutic use, Cognitive Behavioral Therapy methods, Fibromyalgia drug therapy, Fibromyalgia therapy
- Abstract
Introduction: Cognitive behavioral therapy (CBT) and U.S. Food and Drug Administration (FDA)-recommended pharmacologic treatments (RPTs; pregabalin, duloxetine, and milnacipran) are effective treatment options for fibromyalgia (FM) syndrome and are currently recommended by clinical guidelines. We compared the cost-utility from the healthcare and societal perspectives of CBT versus RPT (combination of pregabalin + duloxetine) and usual care (TAU) groups in the treatment of FM., Methods: The economic evaluation was conducted alongside a 6-month, multicenter, randomized, blinded, parallel group, controlled trial. In total, 168 FM patients from 41 general practices in Zaragoza (Spain) were randomized to CBT (n = 57), RPT (n = 56), or TAU (n = 55). The main outcome measures were Quality-Adjusted Life Years (QALYs, assessed by using the EuroQoL-5D questionnaire) and improvements in health-related quality of life (HRQoL, assessed by using EuroQoL-5D visual analogue scale, EQ-VAS). The costs of healthcare use were estimated from patient self-reports (Client Service Receipt Inventory). Cost-utility was assessed by using the net-benefit approach and cost-effectiveness acceptability curves (CEACs)., Results: On average, the total costs per patient in the CBT group (1,847 €) were significantly lower than those in patients receiving RPT (3,664 €) or TAU (3,124 €). Patients receiving CBT reported a higher quality of life (QALYs and EQ-VAS scores); the differences between groups were significant only for EQ-VAS. From a complete case-analysis approach (base case), the point estimates of the cost-effectiveness ratios resulted in dominance for the CBT group in all of the comparisons performed, by using both QALYs and EQ-VAS as outcomes. These findings were confirmed by bootstrap analyses, net-benefit curves, and CEACs. Two additional sensitivity analyses (intention-to-treat analysis and per-protocol analysis) indicated that the results were robust. The comparison of RPT with TAU yielded no clear preference for either treatment when using QALYs, although RPT was determined to be more cost-effective than TAU when evaluating EQ-VAS., Conclusions: Because of lower costs, CBT is the most cost-effective treatment for adult FM patients. Implementation in routine medical care would require policymakers to develop more-widespread public access to trained and experienced therapists in group-based forms of CBT., Trial Registration: Current Controlled Trials ISRCTN10804772. Registered 29 September 2008.
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- 2014
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33. Improving Well-being and Health for People with Dementia (WHELD): study protocol for a randomised controlled trial.
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Whitaker R, Fossey J, Ballard C, Orrell M, Moniz-Cook E, Woods RT, Murray J, Stafford J, Knapp M, Romeo R, Carlton BW, Testad I, and Khan Z
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- Antipsychotic Agents therapeutic use, Clinical Protocols, Combined Modality Therapy, Cooperative Behavior, Cost-Benefit Analysis, Dementia diagnosis, Dementia psychology, Education, Medical, Continuing, Health Care Costs, Humans, Inservice Training, Patient Care Team, Patient-Centered Care economics, Single-Blind Method, Time Factors, Treatment Outcome, United Kingdom, Community Mental Health Services economics, Dementia therapy, Health Services for the Aged economics, Homes for the Aged economics, Mental Health, Nursing Homes economics, Patient-Centered Care methods, Quality of Life, Research Design
- Abstract
Background: People with dementia living in care homes often have complex mental health problems, disabilities and social needs. Providing more comprehensive training for staff working in care home environments is a high national priority. It is important that this training is evidence based and delivers improvement for people with dementia residing in these environments. Well-being and Health for People with Dementia (WHELD) combines the most effective elements of existing approaches to develop a comprehensive but practical staff training intervention. This optimised intervention is based on a factorial study and qualitative evaluation, to combine: training on person-centred care, promoting person-centred activities and interactions, and providing care home staff and general practitioners with updated knowledge regarding the optimal use of psychotropic medications for persons with dementia in care homes., Design: The trial will be a randomised controlled two-arm cluster single blind trial that will take place for nine months across 80 care homes in the United Kingdom., Discussion: The overarching goal of this trial is to determine whether this optimised WHELD intervention is more effective in improving the quality of life and mental health than the usual care provided to people with dementia living in nursing homes. This study will be the largest and best powered randomised controlled trial (RCT) evaluating the benefits of an augmented person-centred care training intervention in care homes worldwide., Trial Registration: Current controlled trials ISRCTN62237498 Date registered: 5 September 2013.
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- 2014
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34. Does telecare prolong community living in dementia? A study protocol for a pragmatic, randomised controlled trial.
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Leroi I, Woolham J, Gathercole R, Howard R, Dunk B, Fox C, O'Brien J, Bateman A, Poland F, Bentham P, Burns A, Davies A, Forsyth K, Gray R, Knapp M, Newman S, McShane R, and Ritchie C
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- Clinical Protocols, Cost-Benefit Analysis, Dementia diagnosis, Dementia economics, Dementia psychology, England, Health Care Costs, Humans, Institutionalization, Time Factors, Treatment Outcome, Community Health Services economics, Dementia therapy, Independent Living economics, Research Design, Telemedicine economics
- Abstract
Background: Assistive technology and telecare (ATT) are relatively new ways of delivering care and support to people with social care needs. It is claimed that ATT reduces the need for community care, prevents unnecessary hospital admission, and delays or prevents admission into residential or nursing care. The current economic situation in England has renewed interest in ATT instead of community care packages. However, at present, the evidence base to support claims about the impact and effectiveness of ATT is limited, despite its potential to mitigate the high financial cost of caring for people with dementia and the social and psychological cost to unpaid carers., Method/design: ATTILA (Assistive Technology and Telecare to maintain Independent Living At Home for People with Dementia) is a pragmatic, multi-centre, randomised controlled trial over 104 weeks that compares outcomes for people with dementia who receive ATT and those who receive equivalent community services but not ATT. The study hypothesis is that fewer people in the ATT group will go into institutional care over the 4-year period for which the study is funded. The study aims to recruit 500 participants, living in community settings, with dementia or significant cognitive impairment, who have recently been referred to social services.Primary outcome measures are time in days from randomisation to institutionalisation and cost effectiveness. Secondary outcomes are caregiver burden, health-related quality of life in carers, number and severity of serious adverse events, and data on acceptability, applicability and reliability of ATT intervention packages. Assessments will be undertaken in weeks 0 (baseline), 12, 24, 52 and 104 or until institutionalisation or withdrawal of the participant from the trial., Discussion: In a time of financial austerity, CASSRs in England are increasingly turning to ATT in the belief that it will deliver good outcomes for less money. There is an absence of robust evidence for the cost-effectiveness and benefit of using assistive technology and telecare. The ATTILA trial meets a pressing need for robust, generalisable evidence to either justify continuing investment or reappraise the appropriate scale of ATT use., Trial Registration: Current Controlled Trials ISRCTN86537017.
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- 2013
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35. Goal-oriented cognitive rehabilitation in early-stage dementia: study protocol for a multi-centre single-blind randomised controlled trial (GREAT).
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Clare L, Bayer A, Burns A, Corbett A, Jones R, Knapp M, Kopelman M, Kudlicka A, Leroi I, Oyebode J, Pool J, Woods B, and Whitaker R
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- Affect, Caregivers psychology, Clinical Protocols, Cognition, Cost-Benefit Analysis, Dementia diagnosis, Dementia economics, Dementia psychology, Health Care Costs, Humans, Patient Satisfaction, Quality of Life, Self Efficacy, Single-Blind Method, Stress, Psychological prevention & control, Stress, Psychological psychology, Time Factors, Treatment Outcome, United Kingdom, Cognitive Behavioral Therapy economics, Dementia rehabilitation, Goals, Research Design
- Abstract
Background: Preliminary evidence suggests that goal-oriented cognitive rehabilitation (CR) may be a clinically effective intervention for people with early-stage Alzheimer's disease, vascular or mixed dementia and their carers. This study aims to establish whether CR is a clinically effective and cost-effective intervention for people with early-stage dementia and their carers., Methods/design: In this multi-centre, single-blind randomised controlled trial, 480 people with early-stage dementia, each with a carer, will be randomised to receive either treatment as usual or cognitive rehabilitation (10 therapy sessions over 3 months, followed by 4 maintenance sessions over 6 months). We will compare the effectiveness of cognitive rehabilitation with that of treatment as usual with regard to improving self-reported and carer-rated goal performance in areas identified as causing concern by people with early-stage dementia; improving quality of life, self-efficacy, mood and cognition of people with early-stage dementia; and reducing stress levels and ameliorating quality of life for carers of participants with early-stage dementia. The incremental cost-effectiveness of goal-oriented cognitive rehabilitation compared to treatment as usual will also be examined., Discussion: If the study confirms the benefits and cost-effectiveness of cognitive rehabilitation, it will be important to examine how the goal-oriented cognitive rehabilitation approach can most effectively be integrated into routine health-care provision. Our aim is to provide training and develop materials to support the implementation of this approach following trial completion.
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- 2013
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36. Cost-effectiveness of adherence therapy versus health education for people with schizophrenia: randomised controlled trial in four European countries.
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Patel A, McCrone P, Leese M, Amaddeo F, Tansella M, Kilian R, Angermeyer M, Kikkert M, Schene A, and Knapp M
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Background: Non-adherence to anti-psychotics is common, expensive and affects recovery. We therefore examine the cost-effectiveness of adherence therapy for people with schizophrenia by multi-centre randomised trial in Amsterdam, London, Leipzig and Verona., Methods: Participants received 8 sessions of adherence therapy or health education. We measured lost productivity and use of health/social care, criminal justice system and informal care at baseline and one year to estimate and compare mean total costs from health/social care and societal perspectives. Outcomes were the Short Form 36 (SF-36) mental component score (MCS) and quality-adjusted life years (QALYs) gained (SF-36 and EuroQoL 5 dimension (EQ5D)). Cost-effectiveness was examined for all cost and outcome combinations using cost-effectiveness acceptability curves (CEACs)., Results: 409 participants were recruited. There were no cost or outcome differences between adherence therapy and health education. The probability of adherence therapy being cost-effective compared to health education was between 0.3 and 0.6 for the six cost-outcome combinations at the willingness to pay thresholds we examined., Conclusions: Adherence therapy appears equivalent to health education. It is unclear whether it would have performed differently against a treatment as usual control, whether such an intervention can impact on quality of life in the short-term, or whether it is likely to be cost-effective in some sites but not others., Trial Registration: Trial registration: Current Controlled Trials ISRCTN01816159.
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- 2013
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37. Feasibility study of an optimised person-centred intervention to improve mental health and reduce antipsychotics amongst people with dementia in care homes: study protocol for a randomised controlled trial.
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Whitaker R, Ballard C, Stafford J, Orrell M, Moniz-Cook E, Woods RT, Murray J, Knapp M, Carlton BW, and Fossey J
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- Antipsychotic Agents economics, Clinical Protocols, Cost-Benefit Analysis, Dementia diagnosis, Dementia drug therapy, Dementia economics, Dementia psychology, Drug Costs, Feasibility Studies, Humans, Interpersonal Relations, Pilot Projects, Quality of Life, Time Factors, Treatment Outcome, United Kingdom, Antipsychotic Agents therapeutic use, Dementia therapy, Health Services for the Aged economics, Homes for the Aged economics, Mental Health, Nursing Homes economics, Patient-Centered Care economics, Research Design
- Abstract
Background: People living in care homes often have complex mental and physical health problems, disabilities and social needs which are compounded by the use of psychiatric and other drugs. In the UK dementia care is a national priority with a vast impact on services. WHELD combines the most effective elements of existing approaches to develop a comprehensive but practical intervention. This will be achieved by training care staff to provide care that is focused on an understanding of the individual and their needs; and by using additional components such as exercise, activities and social interaction to improve mental health and quality of life (QoL) and reduce the use of sedative drugs., Design: Work Package 3 (WP3) is the pilot randomised trial and qualitative evaluation to help develop a future definitive randomised controlled clinical trial. The study design is a cluster randomised 2x2x2 factorial design with two replications in 16 care homes. Each care home is randomized to receive one of the eight possible permutations of the four key interventions, with each possible combination delivered in two of the 16 homes. Each cluster includes a minimum of 12 participants (depending upon size of the care home, the number of people with dementia and the number consenting)., Discussion: The overarching goal of the programme is to provide an effective, simple and practical intervention which improves the mental health of, and reduces sedative drug use in, people with dementia in care homes and which can be implemented nationally in all UK care homes as an NHS intervention., Trial Registration: Current controlled trials ISRCTN40313497.
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- 2013
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38. An organisational analysis of the implementation of telecare and telehealth: the whole systems demonstrator.
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Hendy J, Chrysanthaki T, Barlow J, Knapp M, Rogers A, Sanders C, Bower P, Bowen R, Fitzpatrick R, Bardsley M, and Newman S
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- England, Humans, Interviews as Topic, Long-Term Care methods, Long-Term Care organization & administration, Organizational Case Studies, Organizational Innovation, Program Development, Qualitative Research, Telemedicine methods, Telemedicine organization & administration
- Abstract
Background: To investigate organisational factors influencing the implementation challenges of redesigning services for people with long term conditions in three locations in England, using remote care (telehealth and telecare)., Methods: Case-studies of three sites forming the UK Department of Health's Whole Systems Demonstrator (WSD) Programme. Qualitative research techniques were used to obtain data from various sources, including semi-structured interviews, observation of meetings over the course programme and prior to its launch, and document review. Participants were managers and practitioners involved in the implementation of remote care services., Results: The implementation of remote care was nested within a large pragmatic cluster randomised controlled trial (RCT), which formed a core element of the WSD programme. To produce robust benefits evidence, many aspect of the trial design could not be easily adapted to local circumstances. While remote care was successfully rolled-out, wider implementation lessons and levels of organisational learning across the sites were hindered by the requirements of the RCT., Conclusions: The implementation of a complex innovation such as remote care requires it to organically evolve, be responsive and adaptable to the local health and social care system, driven by support from front-line staff and management. This need for evolution was not always aligned with the imperative to gather robust benefits evidence. This tension needs to be resolved if government ambitions for the evidence-based scaling-up of remote care are to be realised.
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- 2012
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39. Individual Cognitive Stimulation Therapy for dementia (iCST): study protocol for a randomized controlled trial.
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Orrell M, Yates LA, Burns A, Russell I, Woods RT, Hoare Z, Moniz-Cook E, Henderson C, Knapp M, Spector A, and Orgeta V
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- Humans, Outcome Assessment, Health Care, Patient Compliance, Random Allocation, Sample Size, Single-Blind Method, Clinical Protocols, Cognitive Behavioral Therapy, Dementia therapy
- Abstract
Background: Improving the quality of care for people with dementia and their carers has become a national priority in many countries. Cognitive Stimulation Therapy (CST) groups can be beneficial in improving cognition and quality of life for people with dementia. The aim of the current study is to develop and evaluate a home-based individual Cognitive Stimulation Therapy (iCST) programme for people with dementia which can be delivered by their family carer., Methods: This multi-centre, pragmatic randomised controlled trial (RCT) will compare the effectiveness and cost-effectiveness of iCST for people with dementia with a treatment as usual control group. The intervention consists of iCST sessions delivered by a carer for 30 minutes, 3 times a week over 25 weeks.For people with dementia the primary outcome measures are cognition assessed by the ADAS-Cog, and quality of life assessed by QoL-AD. For carers, quality of life using the SF-12 is the primary outcome measure. Using a 5% significance level, comparison of 306 participants will yield 80% power to detect an effect size of 0.35 for cognition as measured by the ADAS-Cog, and quality of life as measured by the QoL-AD. Quality of life for the carer will be measured using the SF-12. The trial will include a cost-effectiveness analysis from a public sector perspective., Discussion: The UK Department of Health has recently stressed that improving access to psychological therapies is a national priority, but many people with dementia are unable to access psychological interventions. The development of a home-based individual version of CST will provide an easy to use, widely available therapy package that will be evaluated for effectiveness and cost-effectiveness in a multi centre RCT.
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- 2012
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40. Exploring barriers to participation and adoption of telehealth and telecare within the Whole System Demonstrator trial: a qualitative study.
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Sanders C, Rogers A, Bowen R, Bower P, Hirani S, Cartwright M, Fitzpatrick R, Knapp M, Barlow J, Hendy J, Chrysanthaki T, Bardsley M, and Newman SP
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- Adult, Aged, Aged, 80 and over, Female, Health Knowledge, Attitudes, Practice, Health Services Needs and Demand, House Calls, Humans, London, Male, Middle Aged, Patient Dropouts psychology, Qualitative Research, Self Care, Diffusion of Innovation, Telemedicine
- Abstract
Background: Telehealth (TH) and telecare (TC) interventions are increasingly valued for supporting self-care in ageing populations; however, evaluation studies often report high rates of non-participation that are not well understood. This paper reports from a qualitative study nested within a large randomised controlled trial in the UK: the Whole System Demonstrator (WSD) project. It explores barriers to participation and adoption of TH and TC from the perspective of people who declined to participate or withdrew from the trial., Methods: Qualitative semi-structured interviews were conducted with 22 people who declined to participate in the trial following explanations of the intervention (n = 19), or who withdrew from the intervention arm (n = 3). Participants were recruited from the four trial groups (with diabetes, chronic obstructive pulmonary disease, heart failure, or social care needs); and all came from the three trial areas (Cornwall, Kent, east London). Observations of home visits where the trial and interventions were first explained were also conducted by shadowing 8 members of health and social care staff visiting 23 people at home. Field notes were made of observational visits and explored alongside interview transcripts to elicit key themes., Results: Barriers to adoption of TH and TC associated with non-participation and withdrawal from the trial were identified within the following themes: requirements for technical competence and operation of equipment; threats to identity, independence and self-care; expectations and experiences of disruption to services. Respondents held concerns that special skills were needed to operate equipment but these were often based on misunderstandings. Respondents' views were often explained in terms of potential threats to identity associated with positive ageing and self-reliance, and views that interventions could undermine self-care and coping. Finally, participants were reluctant to risk potentially disruptive changes to existing services that were often highly valued., Conclusions: These findings regarding perceptions of potential disruption of interventions to identity and services go beyond more common expectations that concerns about privacy and dislike of technology deter uptake. These insights have implications for health and social care staff indicating that more detailed information and time for discussion could be valuable especially on introduction. It seems especially important for potential recipients to have the opportunity to discuss their expectations and such views might usefully feed back into design and implementation.
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- 2012
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41. Peer support for family carers of people with dementia, alone or in combination with group reminiscence in a factorial design: study protocol for a randomised controlled trial.
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Charlesworth G, Burnell K, Beecham J, Hoare Z, Hoe J, Wenborn J, Knapp M, Russell I, Woods B, and Orrell M
- Subjects
- Dementia psychology, Humans, Outcome Assessment, Health Care, Research Design, Social Support, Caregivers psychology, Dementia therapy
- Abstract
Background: Peer support interventions can improve carer wellbeing and interventions that engage both the carer and person with dementia can have significant mutual benefits. Existing research has been criticised for inadequate rigour of design or reporting. This paper describes the protocol for a complex trial that evaluates one-to-one peer support and a group reminiscence programme, both separately and together, in a factorial design., Design: A 2 × 2 factorial multi-site randomised controlled trial of individual peer support and group reminiscence interventions for family carers and people with dementia in community settings in England, addressing both effectiveness and cost-effectiveness., Discussion: The methods described in this protocol have implications for research into psychosocial interventions, particularly complex interventions seeking to test both individual and group approaches.
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- 2011
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42. A comprehensive evaluation of the impact of telemonitoring in patients with long-term conditions and social care needs: protocol for the whole systems demonstrator cluster randomised trial.
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Bower P, Cartwright M, Hirani SP, Barlow J, Hendy J, Knapp M, Henderson C, Rogers A, Sanders C, Bardsley M, Steventon A, Fitzpatrick R, Doll H, and Newman S
- Subjects
- Cluster Analysis, Evaluation Studies as Topic, Humans, Chronic Disease, Health Services Needs and Demand, Monitoring, Physiologic, Research Design, Social Support, Telemedicine
- Abstract
Background: It is expected that increased demands on services will result from expanding numbers of older people with long-term conditions and social care needs. There is significant interest in the potential for technology to reduce utilisation of health services in these patient populations, including telecare (the remote, automatic and passive monitoring of changes in an individual's condition or lifestyle) and telehealth (the remote exchange of data between a patient and health care professional). The potential of telehealth and telecare technology to improve care and reduce costs is limited by a lack of rigorous evidence of actual impact., Methods/design: We are conducting a large scale, multi-site study of the implementation, impact and acceptability of these new technologies. A major part of the evaluation is a cluster-randomised controlled trial of telehealth and telecare versus usual care in patients with long-term conditions or social care needs. The trial involves a number of outcomes, including health care utilisation and quality of life. We describe the broad evaluation and the methods of the cluster randomised trial, Discussion: If telehealth and telecare technology proves effective, it will provide additional options for health services worldwide to deliver care for populations with high levels of need., Trial Registration: Current Controlled Trials ISRCTN43002091.
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- 2011
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43. The DAOA/G30 locus and affective disorders: haplotype based association study in a polydiagnostic approach.
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Gawlik M, Wehner I, Mende M, Jung S, Pfuhlmann B, Knapp M, and Stöber G
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- Adult, Alleles, Case-Control Studies, Chromosome Mapping statistics & numerical data, Chromosomes, Human, Pair 13 genetics, Female, Genetic Association Studies statistics & numerical data, Genetic Markers, Genetic Predisposition to Disease genetics, Humans, Intracellular Signaling Peptides and Proteins, Linkage Disequilibrium genetics, Male, Middle Aged, Polymorphism, Single Nucleotide genetics, Bipolar Disorder diagnosis, Bipolar Disorder genetics, Carrier Proteins genetics, Depressive Disorder diagnosis, Depressive Disorder genetics, Haplotypes genetics
- Abstract
Background: The DAOA/G30 (D-amino acid oxidase activator) gene complex at chromosomal region 13q32-33 is one of the most intriguing susceptibility loci for the major psychiatric disorders, although there is no consensus about the specific risk alleles or haplotypes across studies., Methods: In a case-control sample of German descent (affective psychosis: n = 248; controls: n = 188) we examined seven single nucleotide polymorphisms (SNPs) around DAOA/G30 (rs3916966, rs1935058, rs2391191, rs1935062, rs947267, rs3918342, and rs9558575) for genetic association in a polydiagnostic approach (ICD 10; Leonhard's classification)., Results: No single marker showed evidence of overall association with affective disorder neither in ICD10 nor Leonhard's classification. Haplotype analysis revealed no association with recurrent unipolar depression or bipolar disorder according to ICD10, within Leonhard's classification manic-depression was associated with a 3-locus haplotype (rs2391191, rs1935062, and rs3916966; P = 0.022) and monopolar depression with a 5-locus combination at the DAOA/G30 core region (P = 0.036)., Conclusion: Our data revealed potential evidence for partially overlapping risk haplotypes at the DAOA/G30 locus in Leonhard's affective psychoses, but do not support a common genetic contribution of the DAOA/G30 gene complex to the pathogenesis of affective disorders.
- Published
- 2010
- Full Text
- View/download PDF
44. Maintenance Cognitive Stimulation Therapy (CST) for dementia: a single-blind, multi-centre, randomized controlled trial of Maintenance CST vs. CST for dementia.
- Author
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Aguirre E, Spector A, Hoe J, Russell IT, Knapp M, Woods RT, and Orrell M
- Subjects
- Activities of Daily Living, Affect, Caregivers psychology, Cholinesterase Inhibitors economics, Combined Modality Therapy, Communication, Cost-Benefit Analysis, Dementia economics, Dementia psychology, Drug Costs, Health Care Costs, Humans, Quality of Life, Research Design, Single-Blind Method, Surveys and Questionnaires, Time Factors, Treatment Outcome, Cholinesterase Inhibitors therapeutic use, Cognitive Behavioral Therapy economics, Dementia therapy
- Abstract
Background: Psychological treatments for dementia are widely used in the UK and internationally, but only rarely have they been standardised, adequately evaluated or systematically implemented. There is increasing recognition that psychosocial interventions may have similar levels of effectiveness to medication, and both can be used in combination. Cognitive Stimulation Therapy (CST) is a 7-week cognitive-based approach for dementia that has been shown to be beneficial for cognition and quality of life and is cost-effective, but there is less conclusive evidence for the effects of CST over an extended period., Methods/design: This multi-centre, pragmatic randomised controlled trial (RCT) to assess the effectiveness and cost-effectiveness of Maintenance CST groups for dementia compares a intervention group who receive CST for 7 weeks followed by the Maintenance CST programme once a week for 24 weeks with the control group who receive CST for 7 weeks, followed by treatment as usual for 24 weeks.The primary outcome measures are quality of life of people with dementia assessed by the QoL-AD and cognition assessed by the ADAS-Cog. Secondary outcomes include the person with dementia's mood, behaviour, activities of daily living, ability to communicate and costs; as well as caregiver health-related quality of life. Using a 5% significance level, comparison of 230 participants will yield 80% power to detect a standardised difference of 0.39 on the ADAS-Cog between the groups. The trial includes a cost-effectiveness analysis from a public sector perspective., Discussion: A pilot study of longer-term Maintenance CST, offering 16 weekly sessions of maintenance following the initial CST programme, previously found a significant improvement in cognitive function (MMSE) for those on the intervention group. The study identified the need for a large-scale, multi-centre RCT to define the potential longer-term benefits of continuing the therapy. This study aims to provide definitive evidence of the potential efficacy of maintenance CST and establish how far the long-term benefits can be compared with antidementia drugs such as cholinesterase inhibitors.
- Published
- 2010
- Full Text
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45. Emerging applications of fluorescence spectroscopy in medical microbiology field.
- Author
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Shahzad A, Köhler G, Knapp M, Gaubitzer E, Puchinger M, and Edetsberger M
- Subjects
- Bacterial Typing Techniques instrumentation, Fungi classification, Humans, Sensitivity and Specificity, Spectrometry, Fluorescence instrumentation, Viruses classification, Bacteria classification, Bacterial Infections diagnosis, Bacterial Infections microbiology, Bacterial Typing Techniques methods, Spectrometry, Fluorescence methods
- Abstract
There are many diagnostic techniques and methods available for diagnosis of medically important microorganisms like bacteria, viruses, fungi and parasites. But, almost all these techniques and methods have some limitations or inconvenience. Most of these techniques are laborious, time consuming and with chances of false positive or false negative results. It warrants the need of a diagnostic technique which can overcome these limitations and problems. At present, there is emerging trend to use Fluorescence spectroscopy as a diagnostic as well as research tool in many fields of medical sciences. Here, we will critically discuss research studies which propose that Fluorescence spectroscopy may be an excellent diagnostic as well as excellent research tool in medical microbiology field with high sensitivity and specificity.
- Published
- 2009
- Full Text
- View/download PDF
46. Financial incentives to improve adherence to anti-psychotic maintenance medication in non-adherent patients - a cluster randomised controlled trial (FIAT).
- Author
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Priebe S, Burton A, Ashby D, Ashcroft R, Burns T, David A, Eldridge S, Firn M, Knapp M, and McCabe R
- Subjects
- Adolescent, Adult, Aged, Antipsychotic Agents economics, Cost-Benefit Analysis, Delayed-Action Preparations economics, Delphi Technique, Fees and Charges statistics & numerical data, Female, Hospitalization statistics & numerical data, Humans, Male, Middle Aged, Patient Satisfaction, Pilot Projects, Psychotic Disorders economics, Psychotic Disorders psychology, Quality of Life, Suicide, Attempted prevention & control, Treatment Outcome, Antipsychotic Agents therapeutic use, Motivation, Patient Compliance psychology, Psychotic Disorders drug therapy, Reward
- Abstract
Background: Various interventions have been tested to achieve adherence to anti-psychotic maintenance medication in non-adherent patients with psychotic disorders, and there is no consistent evidence for the effectiveness of any established intervention. The effectiveness of financial incentives in improving adherence to a range of treatments has been demonstrated; no randomised controlled trial however has tested the use of financial incentives to achieve medication adherence for patients with psychotic disorders living in the community., Methods/design: In a cluster randomised controlled trial, 34 mental health teams caring for difficult to engage patients in the community will be randomly allocated to either the intervention group, where patients will be offered a financial incentive for each anti-psychotic depot medication they receive over a 12 month period, or the control group, where all patients will receive treatment as usual. We will recruit 136 patients with psychotic disorders who use these services and who have problems adhering to antipsychotic depot medication, although all conventional methods to achieve adherence have been tried. The primary outcome will be adherence levels, and secondary outcomes are global clinical improvement, number of voluntary and involuntary hospital admissions, number of attempted and completed suicides, incidents of physical violence, number of police arrests, number of days spent in work/training/education, subjective quality of life and satisfaction with medication. We will also establish the cost effectiveness of offering financial incentives., Discussion: The study aims to provide new evidence on the effectiveness and cost effectiveness of offering financial incentives to patients with psychotic disorders to adhere to antipsychotic maintenance medication. If financial incentives improve adherence and lead to better health and social outcomes, they may be recommended as one option to improve the treatment of non-adherent patients with psychotic disorders., Trial Registration: Current controlled trials ISRCTN77769281.
- Published
- 2009
- Full Text
- View/download PDF
47. DOMINO-AD protocol: donepezil and memantine in moderate to severe Alzheimer's disease - a multicentre RCT.
- Author
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Jones R, Sheehan B, Phillips P, Juszczak E, Adams J, Baldwin A, Ballard C, Banerjee S, Barber B, Bentham P, Brown R, Burns A, Dening T, Findlay D, Gray R, Griffin M, Holmes C, Hughes A, Jacoby R, Johnson T, Jones R, Knapp M, Lindesay J, McKeith I, McShane R, Macharouthu A, O'Brien J, Onions C, Passmore P, Raftery J, Ritchie C, and Howard R
- Subjects
- Donepezil, Evidence-Based Medicine, Humans, Research Design, Severity of Illness Index, Alzheimer Disease drug therapy, Dopamine Agents therapeutic use, Indans therapeutic use, Memantine therapeutic use, Nootropic Agents therapeutic use, Piperidines therapeutic use
- Abstract
Background: Alzheimer's disease (AD) is the commonest cause of dementia. Cholinesterase inhibitors, such as donepezil, are the drug class with the best evidence of efficacy, licensed for mild to moderate AD, while the glutamate antagonist memantine has been widely prescribed, often in the later stages of AD. Memantine is licensed for moderate to severe dementia in AD but is not recommended by the England and Wales National Institute for Health and Clinical Excellence. However, there is little evidence to guide clinicians as to what to prescribe as AD advances; in particular, what to do as the condition progresses from moderate to severe. Options include continuing cholinesterase inhibitors irrespective of decline, adding memantine to cholinesterase inhibitors, or prescribing memantine instead of cholinesterase inhibitors. The aim of this trial is to establish the most effective drug option for people with AD who are progressing from moderate to severe dementia despite treatment with donepezil., Method: DOMINO-AD is a pragmatic, 15 centre, double-blind, randomized, placebo controlled trial. Patients with AD, currently living at home, receiving donepezil 10 mg daily, and with Standardized Mini-Mental State Examination (SMMSE) scores between 5 and 13 are being recruited. Each is randomized to one of four treatment options: continuation of donepezil with memantine placebo added; switch to memantine with donepezil placebo added; donepezil and memantine together; or donepezil placebo with memantine placebo. 800 participants are being recruited and treatment continues for one year. Primary outcome measures are cognition (SMMSE) and activities of daily living (Bristol Activities of Daily Living Scale). Secondary outcomes are non-cognitive dementia symptoms (Neuropsychiatric Inventory), health related quality of life (EQ-5D and DEMQOL-proxy), carer burden (General Health Questionnaire-12), cost effectiveness (using Client Service Receipt Inventory) and institutionalization. These outcomes are assessed at baseline, 6, 18, 30 and 52 weeks. All participants will be subsequently followed for 3 years by telephone interview to record institutionalization., Discussion: There is considerable debate about the clinical and cost effectiveness of anti-dementia drugs. DOMINO-AD seeks to provide clear evidence on the best treatment strategies for those managing patients at a particularly important clinical transition point., Trial Registration: Current controlled trials ISRCTN49545035.
- Published
- 2009
- Full Text
- View/download PDF
48. Is FKBP5 a genetic marker of affective psychosis? A case control study and analysis of disease related traits.
- Author
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Gawlik M, Moller-Ehrlich K, Mende M, Jovnerovski M, Jung S, Jabs B, Knapp M, and Stoeber G
- Subjects
- Bipolar Disorder psychology, Case-Control Studies, Depressive Disorder psychology, Female, Genotype, Humans, Male, Middle Aged, Promoter Regions, Genetic, Bipolar Disorder genetics, Depressive Disorder genetics, Genetic Markers, Polymorphism, Single Nucleotide, Tacrolimus Binding Proteins genetics
- Abstract
Background: A dysregulation of the hypothalamic-pituitary-adrenal (HPA) axis has been proposed as an important pathogenic factor in depression. Genetic variants of FKBP5, a protein of the HPA system modulating the glucocorticoid receptor, have been reported to be genetically associated with improved response to medical treatment and an increase of depressive episodes., Methods: We examined three single nucleotide polymorphisms (SNPs) in FKBP5, rs4713916 in the proposed promoter region, rs1360780 in the second intron and rs3800373 in the 3'-untranslated region (3'-UTR), in a case-control study of Caucasian origin (affective psychosis: n = 248; controls: n = 188) for genetic association and association with disease related traits., Results: Allele and genotype frequencies of rs4713916, rs1360780 and rs3800373 were not significantly different between cases and controls. Two three-locus haplotypes, G-C-T and A-T-G, accounted for 86.2% in controls. Odds ratios were not increased between cases and controls, except the rare haplotype G-C-G (OR 6.81), representing 2.1% of cases and 0.3% of controls. The frequency of rs4713916AG in patients deviated from expected Hardy-Weinberg equilibrium, the genotype AA at rs4713916 in monopolar depression (P = 0.011), and the two-locus haplotype rs1360780T--rs3800373T in the total sample (overall P = 0.045) were nominally associated with longer continuance of disease., Conclusion: Our data do not support a significant genetic contribution of FKBP5 polymorphisms and haplotypes to affective psychosis, and the findings are inconclusive regarding their contribution to disease-related traits.
- Published
- 2006
- Full Text
- View/download PDF
49. ZDHHC8 as a candidate gene for schizophrenia: analysis of a putative functional intronic marker in case-control and family-based association studies.
- Author
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Faul T, Gawlik M, Bauer M, Jung S, Pfuhlmann B, Jabs B, Knapp M, and Stöber G
- Subjects
- Adult, Case-Control Studies, Female, Genetic Heterogeneity, Genetic Markers, Genetic Predisposition to Disease, Genetic Variation, Genotype, Humans, Introns genetics, Linkage Disequilibrium, Male, Pedigree, Polymorphism, Single Nucleotide genetics, Sex Characteristics, Sex Factors, Acyltransferases genetics, Chromosomes, Human, Pair 22 genetics, Family, Membrane Proteins genetics, Schizophrenia genetics, Zinc Fingers genetics
- Abstract
Background: The chromosome 22q11 region is proposed as a major candidate locus for susceptibility genes to schizophrenia. Recently, the gene ZDHHC8 encoding a putative palmitoyltransferase at 22q11 was proposed to increase liability to schizophrenia based on both animal models and human association studies by significant over-transmission of allele rs175174A in female, but not male subjects with schizophrenia., Methods: Given the genetic complexity of schizophrenia and the potential genetic heterogeneity in different populations, we examined rs175174 in 204 German proband-parent triads and in an independent case-control study (schizophrenic cases: n = 433; controls: n = 186)., Results: In the triads heterozygous parents transmitted allele G preferentially to females, and allele A to males (heterogeneity chi2 = 4.43; p = 0.035). The case-control sample provided no further evidence for overall or gender-specific effects regarding allele and genotype frequency distributions., Conclusion: The findings on rs175174 at ZDHHC8 are still far from being conclusive, but evidence for sexual dimorphism is moderate, and our data do not support a significant genetic contribution of rs175174 to the aetiopathogenesis of schizophrenia.
- Published
- 2005
- Full Text
- View/download PDF
50. Sibship T2 association tests of complex diseases for tightly linked markers.
- Author
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Fan R and Knapp M
- Subjects
- Diabetes Mellitus genetics, Humans, Models, Genetic, Reproducibility of Results, Genetic Linkage, Genetic Markers, Genetics, Medical, Linkage Disequilibrium, Siblings
- Abstract
For population case-control association studies, the false-positive rates can be high due to inappropriate controls, which can occur if there is population admixture or stratification. Moreover, it is not always clear how to choose appropriate controls. Alternatively, the parents or normal sibs can be used as controls of affected sibs. For late-onset complex diseases, parental data are not usually available. One way to study late-onset disorders is to perform sib-pair or sibship analyses. This paper proposes sibship-based Hotelling's T2 test statistics for high-resolution linkage disequilibrium mapping of complex diseases. For a sample of sibships, suppose that each sibship consists of at least one affected sib and at least one normal sib. Assume that genotype data of multiple tightly linked markers/haplotypes are available for each individual in the sample. Paired Hotelling's T2 test statistics are proposed for high-resolution association studies using normal sibs as controls for affected sibs, based on two coding methods: 'haplotype/allele coding' and 'genotype coding'. The paired Hotelling's T2 tests take into account not only the correlation among the markers, but also take the correlation within each sib-pair. The validity of the proposed method is justified by rigorous mathematical and statistical proofs under the large sample theory. The non-centrality parameter approximations of the test statistics are calculated for power and sample size calculations. By carrying out power and simulation studies, it was found that the non-centrality parameter approximations of the test statistics were accurate. By power and type I error analysis, the test statistics based on the 'haplotype/allele coding' method were found to be advantageous in comparison to the test statistics based on the 'genotype coding' method. The test statistics based on multiple markers can have higher power than those based on a single marker. The test statistics can be applied not only for bi-allelic markers, but also for multi-allelic markers. In addition, the test statistics can be applied to analyse the genetic data of multiple markers which contain double heterozygotes--that is, unknown linkage phase data. An SAS macro, Hotel_sibs.sas, is written to implement the method for data analysis.
- Published
- 2005
- Full Text
- View/download PDF
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