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Background: Mounting evidence implicates diets high in fats and processed sugars with increased generation of free radicals in animals. It is still not clearly established whether such a diet alters antioxidant balance in dementia patients, where an oxidative stress status may already exist. The disruption to lipid metabolism by oxidative stress has been recently linked to neurodegeneration and clinical disease. The aim of this study is to assess the relationship between fat, sugar, carbohydrate and caloric intake levels, and antioxidant status in patients with mild to moderate dementia.Methods: The levels of 3 essential endogenous antioxidants (superoxide dismutase, catalase, glutathione peroxidase) were measured in the blood of 26 dementia subjects and 26 cognitively unimpaired controls. Concurrently, the intake levels of relevant nutrients and dietary antioxidants were assessed in all subjects.Results: A statistically significant positive association was observed in the dementia group between glutathione peroxidase activity and the intake of fats (r = 0.44; p = 0.023), carbohydrates (r = 0.46; p = 0.018), total sugars (r = 0.51; p = 0.007) and calories (r = 0.47; p = 0.14). The only significant association in the control group was observed between glutathione peroxidase and fat (r = 0.47; p = 0.015).Conclusion: The higher glutathione peroxidase activity among subjects with greater intake of fats, carbohydrates and sugars may represent a compensatory response to the additional increase in oxidative stress in dementia. Our data shed light on the influence of dietary intake on the oxidant-antioxidant system in mild to moderate dementia patients. [ABSTRACT FROM AUTHOR]

Objectives: Post-diagnostic psychosocial interventions could play an important role in supporting people with mild dementia remain independent. The Promoting Independence in Dementia (PRIDE) intervention was developed to address this., Method: The mixed methods non-randomized, pre-post feasibility study occurred across England. Facilitators were recruited from the voluntary sector and memory services. Participants and their supporters took part in the three-session intervention. Outcome measures were collected at baseline and follow-up. To evaluate acceptability, focus groups and interviews were conducted with a subsample of participants and facilitators., Results: Contextual challenges to delivery including national research governance changes, affected recruitment of study sites. Thirty-four dyads consented, with 14 facilitators providing the intervention. Dyads took part in at least two sessions (79%), and 73% in all three. Outcome measures were completed by 79% without difficulty, with minimal missing data. No significant changes were found on pre and post assessments. Post hoc analysis found moderate effect size improvements for self-management (SMAS instrument) in people with dementia (d = 0.41) and quality of life (EQ5D measure) in carers (d = 0.40). Qualitative data indicated that dyads found PRIDE acceptable, as did intervention facilitators., Conclusions: The three-session intervention was well accepted by participant-dyads and intervention facilitators. A randomized controlled trial of PRIDE would need to carefully consider recruitment potential across geographically varied settings and site stratification according to knowledge of contextual factors, such as the diversity of post-diagnostic services across the country. Letting sites themselves be responsible for identifying suitable intervention facilitators was successful. The self-report measures showed potential to be included in the main trial.

Background: In order to evaluate interventions promoting social health in people with dementia it is essential to have reliable and valid measures. The present review aims to provide an overview of available instruments for the assessment of two domains of social health in community-dwelling people with mild dementia, i.e., the ability to manage life with some degree of independence (self-management) and participation in social activities., Methods: An electronic search was conducted in the following databases: PubMed, CINAHL, and PsycINFO. Characteristics of the instruments, feasibility and psychometric properties of the instruments included are reported on., Results: We identified eight instruments measuring aspects of self-management and three instruments measuring social participation. Validity and reliability of self-management instruments varied between moderate and good. Little information was found on the psychometric properties of the instruments for social participation. In general, feasibility and responsiveness data regarding application in community-dwelling people with dementia were scarce for both types of instruments., Conclusions: Future research into assessment tools for social health should focus on the development of instruments for self-management that also cover the areas of coping with and adapting to the emotional consequences of the disease; instruments for social participation covering the involvement in social interactions that are experienced as meaningful by the person; and on the psychometric properties and responsiveness of instruments. More attention should also be given to the feasibility (ease of use) of these instruments for people with mild dementia, professionals, and researchers.

ABSTRACTObjectives:Sense of competence defines a caregiver's feeling of being capable to manage the caregiving task and is an important clinical concept in the caregiving literature. The aim of this review was to identify the factors, both positive and negative, associated with a caregiver's perception of their sense of competence., Design: A systematic review of the literature was conducted, retrieving both quantitative and qualitative papers from databases PsycINFO, CINAHL, EMBASE, and Medline. A quality assessment was conducted using the STROBE and CASP checklists, and the quality rating informed the inclusion of papers ensuring the evidence was robust. Narrative synthesis was employed to synthesize the findings and to generate an updated conceptual model of sense of competence., Results: Seventeen papers were included in the review, all of which were moderate to high quality. These included 13 quantitative, three mixed-methods and one qualitative study. Factors associated with sense of competence included: behavioral and psychological symptoms of dementia (BPSD), caregiver depression, gratitude, and the ability to find meaning in caregiving., Conclusions: The results of this review demonstrate that both positive and negative aspects of caring are associated with caregiver sense of competence. Positive and negative aspects of caregiving act in tandem to influence caregiver perception of their competence. The proposed model of sense of competence aims to guide future research and clinical interventions aimed at improving this domain but requires further testing, as due to the observational nature of the include papers, the direction of causality could not be inferred.

ABSTRACTObjectives:Dementia often limits the agency of the person to such an extent that there is need for external support in making daily life decisions. This support is usually provided by family members who are sometimes legally empowered to engage in decision-making on behalf of the person for whom they care. However, such family carers receive little or no information on how to best provide support when there is a lack of capacity. This may have an impact on the agency of the person with dementia. This review explores the experience of agency in people living with dementia., Design: A systematic search was conducted on IBSS, MedLine, PsychINFO, EMBASE, and CINAHL. Two independent researchers screened the studies and conducted the quality appraisal. We used meta-ethnography for data analysis. As part of the synthesis, we identified behavioral mechanisms underlying the process of decision-making and looked at how the support of carers comes into play in making deliberate choices., Results: The meta-ethnography involved 20 studies. Three levels of third-order constructs were identified, each describing a decision-making pathway and reflecting the degree of autonomy of the person with dementia: autonomous decision-making, shared decision-making, and pseudo decision-making. Findings highlight those inter-relational processes that promote or negatively impact on the agency of people with dementia., Conclusions: Our review will provide health and social care personnel with an understanding of the role of the carer in the decision-making process, and therefore which mechanisms need to be promoted or discouraged through training.

Background: Family caregivers of people living with dementia can have both positive and negative experiences of caregiving. Despite this, existing outcome measures predominately focus on negative aspects of caregiving such as burden and depression. This review aimed to evaluate the development and psychometric properties of existing positive psychology measures for family caregivers of people living with dementia to determine their potential utility in research and practice., Method: A systematic review of positive psychology outcome measures for family caregivers of people with dementia was conducted. The databases searched were as follows: PsychINFO, CINAHL, MEDLINE, EMBASE, and PubMed. Scale development papers were subject to a quality assessment to appraise psychometric properties., Results: Twelve positive outcome measures and six validation papers of these scales were identified. The emerging constructs of self-efficacy, spirituality, resilience, rewards, gain, and meaning are in line with positive psychology theory., Conclusions: There are some robust positive measures in existence for family caregivers of people living with dementia. However, lack of reporting of the psychometric properties hindered the quality assessment of some outcome measures identified in this review. Future research should aim to include positive outcome measures in interventional research to facilitate a greater understanding of the positive aspects of caregiving and how these contribute to well-being.

Background: There are concerns about the quality of care that people with dementia receive in the general hospital. Staff report a lack of confidence and inadequate training in dementia care., Methods: A train-the-trainer model was implemented across eight acute hospital trusts in London via a large academic health and science network. Impact was evaluated using mixed methods. Data were collected at (a) individual level: "Sense of Competence in Dementia Care" (SCID), (b) ward level: Person Interaction and Environment (PIE) observations, (c) organization level: use of specific tools, i.e. "This Is Me," (d) systems level: numbers and types of staff trained per trust. Results were analyzed with descriptive statistics and paired t-test with thematic framework analysis for PIE observations., Results: The number of staff trained per trust ranged from 67 to 650 (total 2,020). A total of 1,688 (85%) baseline questionnaires and 456 (27%) three month follow-up questionnaires were completed. Mean SCID score was 43.2 at baseline and 50.7 at follow-up (paired t-test, p < 0.001). All sub-scales showed a small increase in competence, the largest being for "building relationships." Organizational level data suggested increased use of carer's passport, "This Is Me" documentation, dementia information leaflets, delirium screening scales, and pathways. PIE observations demonstrated improved staff-patient interactions but little change in hospital environments., Conclusions: There was a significant improvement in staffs' sense of competence in dementia care and the quality of interactions with patients. More hospitals adopted person-centered tools and pathways. Work is required to investigate if these changes improve hospital outcomes for people with dementia.

Background: Up to half of people with dementia in high income countries live in nursing homes and more than two-thirds of care home residents have dementia. Fewer than half of these residents report good quality of life and most older people are anxious about the prospect of moving into a nursing home. Robust evidence is needed as to the causes of admission to nursing homes, particularly where these risk factors are modifiable., Methods: We conducted a systematic literature search to identify controlled comparison studies in which the primary outcome was admission to nursing home of older adults with dementia. Identified studies were assessed for validity and 26 (17 cohort and 9 case-control) were included. Qualitative and quantitative analyses were conducted, including meta-analysis of 15 studies., Results: Poorer cognition and behavioral and psychological symptoms of dementia (BPSD) were consistently associated with an increased risk of nursing home admission and most of our meta-analyses demonstrated impairments in activities of daily living as a significant risk. The effects of community support services were unclear, with both high and low levels of service use leading to nursing home placement. There was an association between caregiver burden and risk of institutionalization, but findings with regard to caregiver depression varied, as did physical health associations, with some studies showing an increased risk of nursing home placement following hip fracture, reduced mobility, and multiple comorbidities., Conclusion: We recommend focusing on cognitive enhancement strategies, assessment and management of BPSD, and carer education and support to delay nursing home placement.

Background: Behavioral and psychological symptoms in dementia (BPSD) are important predictors of institutionalization as well as caregiver burden and depression. Previous reviews have tended to group BPSD as one category with little focus on the role of the individual symptoms. This review investigates the role of the individual symptoms of BPSD in relation to the impact on different measures of family caregiver well-being., Methods: Systematic review and meta-analysis of papers published in English between 1980 and December 2015 reporting which BPSD affect caregiver well-being. Paper quality was appraised using the Downs and Black Checklist (1998)., Results: Forty medium and high quality quantitative papers met the inclusion criteria, 16 were suitable to be included in a meta-analysis of mean distress scores. Depressive behaviors were the most distressing for caregivers followed by agitation/aggression and apathy. Euphoria was the least distressing. Correlation coefficients between mean total behavior scores and mean distress scores were pooled for four studies. Irritability, aberrant motor behavior and delusions were the most strongly correlated to distress, disinhibition was the least correlated., Conclusions: The evidence is not conclusive as to whether some BPSD impact caregiver well-being more than others. Studies which validly examined BPSD individually were limited, and the included studies used numerous measures of BPSD and numerous measures of caregiver well-being. Future research may benefit from a consistent measure of BPSD, examining BPSD individually, and by examining the causal mechanisms by which BPSD impact well-being by including caregiver variables so that interventions can be designed to target BPSD more effectively.

Background: As life expectancies continue to rise, modifiable lifestyle factors that may prevent cognitive decline and dementia in later life become increasingly important in order to maintain quality of life in old age., Methods: Five meta-analyses were conducted on data from papers identified in a systematic review. Studies were grouped according to outcomes (dementia, cognitive impairment including amnestic Mild Cognitive Impairment (aMCI), Mild Cognitive Impairment (MCI), and cognitive decline) and output (risk (RR), odds (OR), or hazard ratios (HR))., Results: Nineteen studies met our inclusion criteria and quality assessments. Four of five meta-analyses showed significant associations between participation in cognitive leisure activities and reduced risk of cognitive impairment (OR = 0.69, 95% CI: 0.56-0.85) and dementia (HR = 0.58, 95% CI: 0.46-0.74; RR = 0.61, 95% CI: 0.42-0.90; OR = 0.78, 95% CI: 0.67-0.90). However, one pooled analysis of cognitive impairment studies did not reach significance (HR = 0.85, 95% CI: 0.71-1.02). Mentally stimulating leisure activities were significantly associated with later life cognition (β = 0.11, p = 0.05), better memory (β = 0.20, 95% CI: 0.11-0.29), speed of processing (β = 0.37, 95% CI: 0.29-0.45), and executive functioning (β = 0.23, 95% CI: 0.15-0.29), and less decline in overall cognition (β = -0.23, p < 0.01), language (β = -0.11, p < 0.05), and executive functioning (β = -0.13, p < 0.05). Activities were also shown to reduce rate of cognitive decline (estimate = 0.03, SE = 0.01, p = 0.00)., Conclusions: There is increasing evidence that participation in cognitively stimulating leisure activities may contribute to a reduction of risk of dementia and cognitive impairment in later life. Promoting involvement in such activities across lifespan could be an important focus for primary prevention strategies for governments and health services.

Background: Equipping staff with the skills to provide high quality care in dementia is essential. The Biopsychosocial (BPS) model of dementia (Spector and Orrell, 2010) is a practical tool designed to encourage staff to develop personalized interventions and treatment plans for people with dementia. This feasibility study aimed to examine the impact of training staff to use the BPS model on skills of formulation, attitude towards dementia and sense of role competence., Method: A within-subjects design was used. Thirty-seven staff working in dementia care across a community mental health team (CMHT), inpatient wards, and residential care homes were trained to use the BPS model. Outcomes were measured at baseline, post-training, and four week follow-up., Results: The ability of staff to understand, formulate, and develop interventions for people with dementia increased significantly following training. There were small, non-significant improvements in positive attitudes, and sense of competence following training. Staff also reported that training improved their understanding of biological and psychosocial factors in dementia., Conclusions: This study provides preliminary evidence that training staff to use the BPS model can lead to improvements in their ability to understand and develop interventions for people with dementia. Further research would be required to draw firm conclusions about its effectiveness.

Background: Trait emotional intelligence (trait EI) is a personality dimension related to affect that has been shown to predict psychopathology. The objective of the present study was to examine the predictive validity of trait EI in explaining anxiety symptoms in family carers of people with dementia., Methods: A cross-sectional survey was conducted with a convenience sample of 203 dementia family caregivers. We used the Trait Emotional Intelligence Questionnaire - Short Form (TEIQue-SF) to measure trait EI in carers. The predictive validity of the scale in explaining anxiety was tested via regression analysis., Results: Bivariate correlational analysis indicated that lower levels of trait EI were related to higher perceived burden, higher anxiety and depression, and poorer self-rated health in carers. Multiple regression analyses indicated that trait EI was a significant predictor of anxiety symptoms after accounting for known factors influencing outcomes for caregivers. Trait EI also showed strong predictive validity in relation to psychosocial outcomes in carers., Conclusions: Trait EI plays an important role in predicting anxiety in dementia caregivers. Theoretical models and interventions aimed at carers of people with dementia should take into account aspects of personality.

Background: Music in Dementia Assessment Scales (MiDAS), an observational outcome measure for music therapy with people with moderate to severe dementia, was developed from qualitative data of focus groups and interviews. Expert and peer consultations were conducted at each stage of the scale development to maximize its content validity. This study aimed to evaluate the psychometric properties of MiDAS., Methods: Care home residents with dementia attended weekly group music therapy for up to ten sessions. Music therapists and care home staff were requested to complete weekly MiDAS ratings. The Quality of Life Scale (QoL-AD) was completed at three time-points., Results: A total of 629 (staff = 306, therapist = 323) MiDAS forms were completed. The statistical analysis revealed that MiDAS has high therapist inter-rater reliability, low staff inter-rater reliability, adequate staff test-retest reliability, adequate concurrent validity, and good construct validity. High factor loadings between the five MiDAS Visual Analogue Scale (VAS) items, levels of Interest, Response, Initiation, Involvement, and Enjoyment, were found., Conclusions: This study indicates that MiDAS has good psychometric properties despite the small sample size. Future research with a larger sample size could provide a more in-depth psychometric evaluation, including further exploration of the underlying factors. MiDAS provides a measure of engagement with musical experience and offers insight into who is likely to benefit on other outcomes such as quality of life or reduction in psychiatric symptoms.

Background: Caregiver efficacy for managing the behavioral and psychological symptoms of dementia (BPSD) is an important determinant of family caregiver stress and burden. This study aims to develop a measure of caregiver efficacy for responding to BPSD and to evaluate its psychometric properties., Methods: The Caregiver Efficacy Scale adds an item for caregiver confidence in managing BPSD to each domain of the Neuropsychiatric Inventory (NPI). The validity, internal consistency, and factor structure of the scale were evaluated in 245 family caregivers., Results: The results provide adequate support for the validity and reliability of the Caregiver Efficacy Scale. The internal consistency was found to be adequate (Cronbach's α = 0.79) and the scale demonstrated good concurrent, construct, and criterion validity. As expected, performance on the Caregiver Efficacy Scale was associated with all dimensions of the NPI, including BPSD frequency (r = 0.869, p < 0.01) and severity (r = 0.883, p < 0.01), and negative outcomes, including negative affect (r = 0.411, p < 0.01), depression (r = 0.362, p < 0.01), anxiety (r = 0.376, p < 0.01), and distress (r = 0.865, p < 0.01)., Conclusions: The Caregiver Efficacy Scale might have clinical implications in facilitating the development of improved caregiver interventions for dealing with BPSD, allowing interventions to be tailored according to individual caregiver needs, and also in evaluating the effectiveness of interventions aimed at improving caregiver self-efficacy for managing BPSD.

Background: Raising understanding of dementia has become a key focus of international health and social care. An up-to-date, psychometrically sound measure of dementia knowledge that embraces a biopsychosocial perspective is lacking. The aim of this study is to develop and evaluate the psychometric properties of the DK-20, a dementia knowledge questionnaire aimed at unqualified care staff., Methods: Domain and item generation followed recommended measure development procedures. A pilot and large-scale study evaluated the psychometric properties of the measure on a sample of 211 care staff and other dementia professionals., Results: The final 20-item measure encompasses items based on biopsychosocial dementia knowledge and care-specific knowledge. Acceptable test-retest reliability, marginal levels of internal consistency, and evidence for face, content, and construct validity were demonstrated., Conclusions: The DK-20 is the first knowledge of dementia measure to be developed specifically for unqualified care staff and has reasonable psychometric properties. It may be used to identify gaps in knowledge, highlighting areas for inclusion in educational interventions.

Background: Understanding and measuring mental health and well-being among carers of people with dementia has become an important public health issue., Methods: In the present study we used the Warwick-Edinburgh Mental Well-Being Scale (WEMWBS) to identify predictors of positive mental health in a convenience sample of family carers of people with dementia using a cross-sectional design., Results: WEMWBS showed a negative correlation with anxiety and depressive symptoms, and a positive correlation with physical health status. Regression analyses indicated that overall nearly 70% of the variance in mental well-being in carers could be attributed to caregiver's age, physical health, stress specific to caregiving, and social support. Preliminary data show that the WEMWBS demonstrates strong internal consistency. Confirmatory factor analysis demonstrated one underlying factor of positive mental well-being., Conclusions: WEMWBS is a psychometrically strong measure of mental well-being, and can be used to identify factors that promote positive mental health in family carers of people with dementia. Current results provide preliminary data supporting the usefulness of the scale as an overall indicator of population mental health and well-being for carers of people with dementia.

Background: Cognitive stimulation therapy (CST) is an evidence-based psychosocial intervention for people with dementia consisting of 14 group sessions aiming to stimulate various areas of cognition. This study examined the effects of CST on specific cognitive domains and explored the neuropsychological processes underpinning any effects., Methods: A total of 34 participants with mild to moderate dementia were included. A one-group pretest-posttest design was used. Participants completed a battery of neuropsychological tests in the week before and after the manualised seven-week CST programme., Results: There were significant improvement pre- to post-CST group on measures of delayed verbal recall (WMS III logical memory subtest - delayed), visual memory (WMS III visual reproduction subtest - delayed), orientation (WMS III information and orientation subscale), and auditory comprehension (Token Test). There were no significant changes on measures of naming (Boston Naming Test-2), attention (Trail Making Test A/Digit Span), executive function (DKEFS verbal fluency/Trail Making Test B), praxis (WMS III visual reproduction - immediate) or on a general cognitive screen (MMSE)., Conclusions: Memory, comprehension of syntax, and orientation appear to be the cognitive domains most impacted by CST. One hypothesis is that the language-based nature of CST enhances neural pathways responsible for processing of syntax, possibly also aiding verbal recall. Another is that the reduction in negative self-stereotypes due to the de-stigmatising effect of CST may impact on language and memory, domains that are the primary focus of CST. Further research is required to substantiate these hypotheses.

Background: Sense of competence in dementia care staff (SCIDS) may be associated with more positive attitudes to dementia among care staff and better outcomes for those being cared for. There is a need for a reliable and valid measure of sense of competence specific to dementia care staff. This study describes the development and evaluation of a measure to assess "sense of competence" in dementia care staff and reports on its psychometric properties., Methods: The systematic measure development process involved care staff and experts. For item selection and assessment of psychometric properties, a pilot study (N = 37) and a large-scale study (N = 211) with a test-retest reliability (N = 58) sub-study were undertaken., Results: The final measure consists of 17 items across four subscales with acceptable to good internal consistency and moderate to substantial test-retest reliability. As predicted, the measure was positively associated with work experience, job satisfaction, and person-centered approaches to dementia care, giving a first indication for its validity., Conclusions: The SCIDS scale provides a useful and user-friendly means of measuring sense of competence in care staff. It has been developed using a robust process and has adequate psychometric properties. Further exploration of the construct and the scale's validity is warranted. It may be useful to assess the impact of training and perceived abilities and skills in dementia care.

Background: Symptoms such as depression, anxiety, and behavioral problems are very common in people with dementia living in care homes. Staff training has been identified as a promising psychosocial intervention. This pilot study investigated the feasibility of implementing the Staff Training in Assisted Living Residences (STAR) program in UK care homes., Methods: The eight-week STAR program was delivered in two care homes. Twenty-five care staff attended the training. Thirty-two residents, with dementia and clinically significant anxiety, depression, or behavioral problems, were included in the study. Residents and staff were assessed at baseline and eight-week follow-up., Results: Residents demonstrated significantly reduced symptoms of depression and behavioral problems following the implementation of the program, although resident-rated quality of life and anxiety symptoms did not improve significantly. Staff sense of hopefulness towards people with dementia also improved significantly and staff rated themselves as significantly more competent at forming relationships with residents., Conclusion: Delivering the STAR program to care staff can have an impact on the behavioral and psychological symptoms of dementia displayed by care home residents. The program was feasible to implement and was rated highly by care staff. A large-scale randomized controlled trial is now required to evaluate the effectiveness of this training intervention.

Background: Training, practice, and continuing professional development in old age psychiatry varies across Europe. The aims of this study were to survey current practice and develop recommendations to begin a debate on harmonization., Methods: A survey was sent out to 38 European countries via email. The survey was sent to members of the European Association of Geriatric Psychiatry (EAGP) Board, members of the World Psychiatric Association, and key old age psychiatrists or other psychiatrists with a special interest in the area for countries where old age psychiatry was not formally a specialty., Results: Through a process of networking, we identified a key individual from each country in Europe to participate in this study, and 30 out of 38 (79%) representatives responded. Training programs and duration varied between countries. Eleven countries reported that they had geriatric psychiatry training programs and most of these required geriatric psychiatry trainees to complete mandatory training for two years within old age psychiatry. Representatives from ten countries reported having specific Continuing Professional Development (CPD) for old age psychiatrists at consultant level., Conclusion: There is a clear indication that the recognition of geriatric psychiatry as a specialist discipline in Europe is on the rise. The training procedures and processes in place vary considerably between and sometimes within countries. There are several options for harmonizing old age psychiatry training across Europe with advantages to each. However, support is required from national old age psychiatry bodies across Europe and an agreement needs to be reached on a training strategy that encompasses supervision, development, and appraisal of the knowledge and skills sets of old age psychiatrists.

Background: Over the years, a number of non-medical and psychosocial explanations and models of dementia have been proposed, due to the complex nature of the illness. However, there is a need for a more pragmatic, user-friendly model which takes into account the biological, psychological and social processes., Methods: Existing models of dementia were amalgamated into a revised, pragmatic model which aims to increase our understanding of the factors that may lead to improvement or deterioration in dementia and to illustrate the role of psychosocial factors in the context of biological processes. The model suggests that in both psychosocial and biological domains there are fixed factors (aspects which relate to history or risk factors and therefore not amenable to change), tractable factors (aspects which may be amenable to change), and interventions with potential benefit., Results: The trajectory of dementia is presented as a process, beginning with aging and ending in death. Both the fixed and the tractable factors may influence the severity of dementia, affecting function, the speed and nature of the deterioration, and the appropriateness and effectiveness of interventions. A working case example is provided, demonstrating how the model may be used by clinicians when assessing the difficulties of an individual with dementia and identifying ways to improve the quality of life and reduce excess disability for that person., Conclusions: This model provides a theoretical framework and an ambitious approach to care in dementia which takes into account positive as well as negative factors. We hope it may become a useful tool for researchers and clinicians to help understand what impacts on individuals with dementia and the most appropriate ways to intervene.

Background: In the U.K. about 141,460 people with dementia (PWD) live alone. They are at risk of social isolation and inadequate social and medical supervision. The aims of this study were to identify the needs of PWD living alone and to compare the needs of PWD living alone versus those living with others. It was predicted that PWD living alone would have significantly more unmet needs than those living with others., Methods: 152 PWD were interviewed about their cognitive status and quality of life (QoL); and 128 informal carers were interviewed about the PWD's QoL, social networks, behavioral and psychological symptoms (BPSD), functional status, and services used. For 24 PWD no carer was available. Carers were also interviewed about their own symptoms of depression, anxiety, burden, and satisfaction. Researchers rated PWD's needs. One-third of the PWD (50) were living alone., Results: PWD living alone had significantly more unmet needs (M = 3.9, s.d. 3.1) than those living with others (M = 2.0, s.d. 2.0) (U = 1578, p < 0.01) particularly in the areas of looking after home (chi2 = 17.23, p < 0.001), food (chi2 = 13.91, p < 0.002), self-care (chi2 = 10.23, p < 0.002) and accidental self-harm (chi2 = 16.51, p < 0.001). The most frequent unmet needs were daytime activities (27, 54.0%), company (26, 52.0%), psychological distress (22, 44.0%), eyesight/hearing (16, 32.0%), and accidental self-harm (16, 32.0%)., Conclusion: PWD living alone are a vulnerable group who are at increased risk for unmet social, environmental, psychological and medical needs. This study illustrates the need to identify these individuals and to make provisions among social service agencies to monitor their well-being regularly and provide a higher level of support when needs are identified.

Background: The Camberwell Assessment of Need for the Elderly (CANE) is widely used for multidimensional evaluation of older people with mental health problems. The aim of this study was to evaluate reliability and validity of a Portuguese version of CANE., Method: A cross-sectional multicenter study was designed using a convenience sample of elderly mental health services' users. CANE was compared with EASYCare, GHQ12, MMSE, Barthel Index and GDS15 to assess criterion and construct validity. Inter-rater and test-retest reliability were also assessed., Results: 79 patients (76% female), with mean age of 74 (+/- 6.6) years were included. Most patients lived at home with a family caregiver, generally female. Only 32% had no carer. Dementia was the commonest psychiatric diagnosis (61%) and somatic comorbidity was very prevalent (85%). Kappa values (kappa) for inter-rater item reliability ranged from 0.72 to 1.00 (mean values: 0.96 patient, 0.93 carer, 0.90 staff). The intraclass correlation coefficient (ICC) for total scores ranged from 0.95 to 0.98.For test-retest item reliability, the mean kappa value was: 0.80 patient, 0.77 carer, 0.81 staff. ICC for total scores ranged from 0.82 to 0.92. Given the absence of a gold standard, criterion validity was assessed by comparing CANE with EASYCare (rs 0.460; p < or = 0.01), GDS (rs 0.615; p < or = 0.01), GHQ (rs 0.581; p < or = 0.01) and Barthel Index (rs-0.435; p < or = 0.01). Overall, inter-item and item-total correlations for CANE and item comparison with other measures indicated reasonable construct validity., Conclusion: The psychometric proprieties of CANE seem to be consistently good, in accordance with other studies. Robust results on ecological, face, content, criterion and construct validity, as well as good reliability, were achieved. This version is a promising tool for research and practical use in Portuguese old age settings.

Background: People with dementia in care homes are at risk of having their views ignored and decisions are often made on their behalf by care home staff and family carers. The aim of this study was to compare the ratings of needs of older people with dementia living in care homes, as assessed by the older person themselves, a family caregiver, and the staff of the care home., Method: The Camberwell Assessment of Need for the Elderly (CANE) was completed for 238 residents with dementia by care staff. In addition, 149 users and 81 family caregivers also completed the assessment of the person's met and unmet needs., Results: Many users were able to report their met and unmet needs despite having moderately severe dementia. The views of the person with dementia were commonly in agreement with the staff and family carers' views. However, user and carer pairs had the lowest average percentage agreement of 63% compared to that of 77% between user and staff pairs. In particular, users reported relatively higher unmet needs for psychological distress, company and information, and high unmet needs for daytime activities and eyesight/hearing problems., Conclusions: Users' views on their needs should be sought even when the person has dementia and lives in a care home. Reliance solely on assessment by staff or carers may lead to under recognition of unmet needs.

Previous reports on the activities of essential endogenous antioxidants such as superoxide dismutase, catalase, and glutathione in dementia patients have not included a simultaneous quantitative assessment of dietary antioxidant intake. This is important because the reported differences in endogenous antioxidant levels among dementia patients may have reflected variations in the total antioxidants' intake. In this study we measured the levels of antioxidant vitamins A, C, and E in the diet of 81 dementia patients and controls at the same time as assessing blood levels of three endogenous antioxidants. Results showed a significant decrease in the intake of vitamins C (p < .001) and E (p < .01) in patients with severe Alzheimer's disease (AD) when compared to controls. Patients with mild/moderate AD differed from controls only in the intake of vitamin C (p < .01). The blood levels of catalase but not superoxide dismutase and glutathione were significantly decreased in the patients with severe AD when compared to controls (p < .01), patients with mild/moderate AD (p < .0 1), and patients with dementia with Lewy bodies (p < .05). The blood catalase levels of dementia patients, as a whole, were significantly and positively associated with the intake of vitamins A (p < .05), C (p < .01), and E (p < .05). The results indicated that dietary intake of vitamins A, C, and E may influence blood levels of catalase possibly through their antioxidant effects on free radicals. The data underscore the importance of concurrent quantitative assessment of nutritional intake when measuring endogenous antioxidant activities and support a role for antioxidant supplementation in the treatment of dementia disorders.