21 results on '"Lynn Zhu"'
Search Results
2. Increased Screen Time for Children and Youth During the COVID-19 Pandemic
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Elaine Toombs, Christopher J. Mushquash, Linda Mah, Kathy Short, Nancy L. Young, Chiachen Cheng, Lynn Zhu, Gillian Strudwick, Catherine Birken, Jessica Hopkins, Daphne J. Korczak, Anna Perkhun, and Karen B. Born
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- 2022
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3. Development of a dynamic machine learning algorithm to predict clinical pregnancy and live birth rate with embryo morphokinetics
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Liubin Yang, Mary Peavey, Khalied Kaskar, Neil Chappell, Lynn Zhu, Darius Devlin, Cecilia Valdes, Amy Schutt, Terri Woodard, Paul Zarutskie, Richard Cochran, and William E. Gibbons
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Embryology ,Reproductive Medicine ,Obstetrics and Gynecology - Abstract
To evaluate the feasibility of generating a center-specific embryo morphokinetic algorithm by time-lapse microscopy to predict clinical pregnancy rates.A retrospective cohort analysis.Academic fertility clinic in a tertiary hospital setting.Patients who underwent in vitro fertilization with embryos that underwent EmbryoScope time-lapse microscopy and subsequent transfer between 2014 and 2018.None.Clinical pregnancy.A supervised, random forest learning algorithm from 367 embryos successfully predicted clinical pregnancy from a training set with overall 65% sensitivity and 74% positive predictive value, with an area under the curve of 0.7 for the test set. Similar results were achieved for live birth outcomes. For the secondary analysis, embryo growth morphokinetics were grouped into five clusters using unsupervised clustering. The clusters that had the fastest morphokinetics (time to blastocyst = 97 hours) had pregnancy rates of 54%, whereas a cluster that had the slowest morphokinetics (time to blastocyst = 122 hours) had a pregnancy rate of 71%, although the differences were not statistically significant (This study shows the feasibility of a clinic-specific, noninvasive embryo morphokinetic simple machine learning model to predict clinical pregnancy rates.
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- 2021
4. The Impact of the COVID-19 Pandemic on Opioid-Related Harm in Ontario
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Christopher J. Mushquash, Erik Loewen Friesen, Nathan M. Stall, Elaine Toombs, Pamela Leece, Gillian Kolla, Paul Kurdyak, Lynn Zhu, Peter Jüni, Linda Mah, Tara Gomes, and Braden O'Neill
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medicine.medical_specialty ,Harm ,Coronavirus disease 2019 (COVID-19) ,Opioid ,business.industry ,Pandemic ,medicine ,Psychiatry ,business ,medicine.drug - Published
- 2021
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5. Perspectives on ageing: a qualitative study of the expectations, priorities, needs and values of older people from two Canadian provinces
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Kate A. Hardacre, Lisa McCarthy, Lynn Zhu, Aya Mahder Bashi, Kenneth Lam, Jim Grieve, Stephanie A. Chamberlain, Rachel D. Savage, Paula A. Rochon, Andrea Gruneir, Nathan M. Stall, Susan E. Bronskill, and Colin Faulkner
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Aging ,Canada ,Vulnerability ,Community-based participatory research ,Critical mass (sociodynamics) ,03 medical and health sciences ,0302 clinical medicine ,Qualitative Paper ,Health care ,Medicine ,Humans ,030212 general & internal medicine ,Public engagement ,Qualitative Research ,Aged ,Motivation ,business.industry ,030503 health policy & services ,General Medicine ,Public relations ,Focus Groups ,Focus group ,Personal experience ,Geriatrics and Gerontology ,0305 other medical science ,business ,Qualitative research - Abstract
Background Understanding the needs and values of older people is vital to build responsive policies, services and research agendas in this time of demographic transition. Older peoples’ expectations and priorities for ageing, as well as their beliefs regarding challenges facing ageing societies, are multi-faceted and require regular updates as populations’ age. Objective To develop an understanding of self-perceptions of ageing and societal ageing among Canadian retirees of the education sector to define a meaningful health research agenda. Methods We conducted four qualitative focus groups among 27 members of a Canadian retired educators’ organisation. Data were analysed using an inductive thematic approach. Results We identified four overarching themes: (1) vulnerability to health challenges despite a healthier generation, (2) maintaining health and social connection for optimal ageing, (3) strengthening person-centred healthcare for ageing societies and (4) mobilising a critical mass to enact change. Participants’ preconceptions of ageing differed from their personal experiences. They prioritised maintaining health and social connections and felt that current healthcare practices disempowered them to manage and optimise their health. Although the sheer size of their demographic instilled optimism of their potential to garner positive change, participants felt they lacked mechanisms to contribute to developing solutions to address this transition. Conclusion Our findings suggest a need for health research that improves perceptions of ageing and supports health system transformations to deliver person-centred care. Opportunities exist to harness their activism to engage older people as partners in shaping solution-oriented research that can support planning for an ageing society.
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- 2021
6. Does Physician Retirement Affect Patients? A Systematic Review
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Cameron G. Arnold, Rachel D. Savage, Kenneth Lam, Susan E. Bronskill, Lynn Zhu, Paula A. Rochon, Nathan M. Stall, Katrina L. Piggott, and Wei Wu
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Aging ,medicine.medical_specialty ,Patients ,media_common.quotation_subject ,MEDLINE ,PsycINFO ,Affect (psychology) ,03 medical and health sciences ,0302 clinical medicine ,Patient satisfaction ,Physicians ,Intervention (counseling) ,medicine ,Humans ,030212 general & internal medicine ,Adverse effect ,media_common ,Retirement ,business.industry ,030503 health policy & services ,Patient Outcome Assessment ,Feeling ,Family medicine ,Geriatrics and Gerontology ,0305 other medical science ,business ,Qualitative research - Abstract
Objectives Older patients that have aged with their doctors will likely experience their physician retiring. It is unclear if this interruption in continuity of care leaves patients at risk for adverse events or whether a new physician improves care. We sought to identify and synthesize findings from all articles examining the association between physician retirement and patient outcomes. Design Systematic review. We searched English-language articles cataloged in Medline, Embase, Cochrane, and PsycINFO, from database inception to May 4, 2018. Participants Any patient whose physician (generalist or specialist) retired. Intervention Physician retirement, defined as voluntary practice closure, death, or departure. Measurements Articles were categorized as anecdotes, qualitative studies, or quantitative studies. Each patient outcome was indexed under one of 11 themes (eg, adverse event, difficulty accessing care) and classified as favorable, neutral, or unfavorable. Patient outcomes included but were not limited to clinical (eg, death), resource utilization (eg, hospitalization), treatment plan adherence (eg, access to medications), and patient satisfaction (eg, expressed frustration). Two reviewers independently assessed study quality. Results Of 2099 articles screened, 17 met inclusion criteria: 12 anecdotes, 2 qualitative studies, and 3 quantitative studies. Most patient outcomes described were unfavorable. These included feelings of loss, difficulties with transition to a new provider, adverse clinical outcomes, and increased use of high-cost services. The quality of qualitative studies was high, but that of quantitative studies was poor or moderate. Conclusion Current evidence from qualitative studies suggests physician retirement affects patients unfavorably and that patients are vulnerable during this transition of care. High-quality quantitative research is lacking to identify whether this disproportionately affects older adults and whether physician retirement has significant consequences for the broader healthcare system. J Am Geriatr Soc 68:641-649, 2020.
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- 2019
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7. Feasibility, Acceptability, and Impact of a Self-guided e-Learning Memory Program for Older Adults
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Danielle D'Amico, Iris Yusupov, Lynn Zhu, Jordan Lass, Cindy Plunkett, Brian Levine, Angela Troyer, and Susan Vandermorris
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Abstracts ,Health (social science) ,Late Breaking Poster Session II ,Life-span and Life-course Studies ,AcademicSubjects/SOC02600 ,Health Professions (miscellaneous) ,Session 9505 (Late Breaking Poster) - Abstract
Clinician-led memory interventions have been shown to increase knowledge, reduce anxiety, promote memory-strategy use, and increase brain-healthy lifestyle behaviours in older adults with normal age-related memory changes. A self-guided, e-learning version of the Baycrest Memory and Aging Program® was recently developed to increase accessibility to memory interventions. The objectives of the current study were to assess program feasibility (retention rate), acceptability (satisfaction), and participant-reported impact (memory concerns, behaviour change, goal attainment). As part of a larger study, participants were 139 healthy older adults (mean age: 73±7, 73% female). Ninety-two individuals completed the program (retention rate=66%). Anonymous feedback data indicated a high level of satisfaction with the program overall (98%), the pace and clarity of the learning modules (100%), and the organization and navigation of the interface (92%). Suggested improvements included offering more interaction with others and addressing minor platform glitches. There was a decrease in the level of concern about memory change, with 64% expressing concern at a level consistent with the Jessen et al. (2014) criteria for Subjective Cognitive Decline at baseline, and 23% expressing the same at post-test. The majority of participants reported increases in using memory-strategies (63-97%) and lifestyle-promoting behaviours (40-72%). All participants reported moderate to high satisfaction with personal goal attainment. Results support feasibility, acceptability, and impact of a self-guided e-learning adaptation of memory intervention. E-learning tools may be a promising avenue to deliver accessible brain health promotion in later life, especially in the context of the shift to virtual care during and beyond COVID-19.
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- 2021
8. Health Forums and Twitter for Dementia Research: Opportunities and Considerations
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Lynn Zhu, Stephanie H. Read, Wei Wu, Nishila Mehta, Paula A. Rochon, Rachel D. Savage, Nathan M. Stall, Colin Faulkner, Paula Pop, Kenneth Lam, and Susan E. Bronskill
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Medical education ,Point (typography) ,business.industry ,Information Dissemination ,Research ,medicine.disease ,Caregivers ,mental disorders ,medicine ,Dementia ,Humans ,Social media ,Geriatrics and Gerontology ,Thematic analysis ,business ,Social Media ,Research dissemination ,Research data ,Dementia research - Abstract
Background/objectives Social media platforms are promising sources for large quantities of participant-driven research data and circumvent some common challenges when conducting dementia research. This study provides a summary of key considerations and recommendations about using these platforms as research tools for dementia. Design Mixed methods. Setting Alzheimer's Society's online Dementia Talking Point forum from inception to April 17, 2018, and Twitter in February and March 2018. Participants All users of Dementia Talking Point who posted in subforums labeled "I have dementia" and "I care for a person with dementia," and Twitter users whose posts contained the keywords "dementia," "Alzheimer," or "Alzheimer's." Measurements We quantified the average daily number of dementia-related posts on each platform and number of words per post. Guided by a codebook, we conducted thematic content analysis of 5% of the 15,513 posts collected from Dementia Talking Point, and 10% of the 25,948 comprehensible posts from Twitter containing "dementia," "Alzheimer," or "Alzheimer's." We also summarized research-relevant characteristics inherent to platforms and posts. Results On average, Dementia Talking Point provided less than two new daily dementia-related posts with 213.5 to 241.5 words, compared with 7,883 new daily Twitter posts with 14.5 words. Persons with dementia (PWDs) commonly shared dementia-related concerns (75.7%), experiences (68.6%), and requests for, as well as offers of, information and support (44.3% and 38.6%, respectively). Caregivers commonly shared caregiving experience (67.0%) and requests for information and support (52.5%). Most common dementia-related Twitter posts were derogatory use of the term dementia (14.5%), advocacy, fundraising, and awareness (11.6%), and research dissemination (8.0%). Recommendations about these platforms' unique technical and ethical considerations are outlined. Conclusions Understanding the priorities of PWDs and their caregivers remains important to understand how clinicians can best support them. This study will help clinicians and researcher to better leverage online health forums and Twitter for such dementia-related information.
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- 2020
9. What Is Known About Preventing, Detecting, and Reversing Prescribing Cascades: A Scoping Review
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Sudeep S. Gill, Paula A. Rochon, Susan E. Bronskill, Wei Wu, Nishila Mehta, Lynn Zhu, Rachel D. Savage, Hana Brath, and Jerry H. Gurwitz
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Medication review ,Drug Prescribing ,business.industry ,MEDLINE ,CINAHL ,Cochrane Library ,medicine.disease ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Reversing ,030212 general & internal medicine ,Medical emergency ,Geriatrics and Gerontology ,Deprescribing ,business ,030217 neurology & neurosurgery - Abstract
OBJECTIVES To systematically describe the resources available on preventing, detecting, and reversing prescribing cascades using a scoping review methodology. MEASUREMENTS We searched Medline, EMBASE, PsychINFO, CINAHL, Cochrane Library, and Sociological Abstracts from inception until July 2017. Other searches (Google Scholar, hand searches) and expert consultations were performed for resources examining how to prevent, detect, or reverse prescribing cascades. We used these three categories along the prescribing continuum as an organizing framework to categorize and synthesize resources. RESULTS Of 369 resources identified, 58 met inclusion criteria; 29 of these were categorized as preventing, 20 as detecting, and 9 as reversing prescribing cascades. Resources originated from 14 countries and mostly focused on older adults. The goal of preventing resources was to educate and increase general awareness of the concept of prescribing cascades as a way to prevent inappropriate prescribing and to illustrate application of the concept to specific drugs (e.g., anticholinergics) and conditions (e.g., inflammatory bowel disease). Detecting resources included original investigations or case reports that identified prescribing cascades using health administrative data, patient cohorts, and novel sources such as social media. Reversing prescribing cascade resources focused on the medication review process and deprescribing initiatives. CONCLUSION Prescribing cascades are a recognized problem internationally. By learning from the range of resources to prevent, detect, and reverse prescribing cascades, this review contributes to improving drug prescribing, especially in older adults. J Am Geriatr Soc 66:2079–2085, 2018.
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- 2018
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10. Initial Cholinesterase Inhibitor Therapy Dose and Serious Events in Older Women and Men
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Lisa McCarthy, Lynn Zhu, Sudeep S. Gill, Andrea Gruneir, Susan E. Bronskill, Sharon-Lise T. Normand, Wei Wu, Jerry H. Gurwitz, Amanda Alberga, Vasily Giannakeas, Paula A. Rochon, Dallas P. Seitz, Nathan Herrmann, Nathan M. Stall, Peter C. Austin, and Chaim M. Bell
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medicine.medical_specialty ,education.field_of_study ,biology ,business.industry ,Proportional hazards model ,Population ,Hazard ratio ,Number needed to harm ,Emergency department ,Confidence interval ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,biology.protein ,Medicine ,030212 general & internal medicine ,Geriatrics and Gerontology ,business ,education ,030217 neurology & neurosurgery ,Cholinesterase ,Cohort study - Abstract
Objectives To examine dose‐related prescribing and short‐term serious events associated with initiation of cholinesterase inhibitor (ChEI) therapy. Design Retrospective, population‐based cohort study. Setting Ontario, Canada. Participants Women (n=47,829) and men (n=32,503) aged 66 and older who initiated a ChEI between April 1, 2010, and June 30, 2016. Measurements All‐cause serious events (emergency department (ED) visits, inpatient hospitalizations, death) within 30 days of ChEI initiation. Multivariable Cox proportional hazards models were used to estimate adjusted rates of serious events. Results Overall, 4.8% of older adults were dispensed a lower‐than‐recommended ChEI starting dose, 87.9% a recommended dose, and 7.3% a higher‐than‐recommended starting dose. Eight thousand six hundred seventy‐one (10.8%) individuals experienced a serious event within 30 days of initiating therapy, primarily ED visits (8,540, 10.6%). Relative to those initiated on a recommended starting dose, those initiated on a higher dose had a significantly increased rate of serious events (women adjusted hazard ratio (aHR) 1.50, 95% confidence interval (CI) =1.38–1.63; men aHR 1.31, 95% CI=1.19–1.45). Similar patterns were found for ED visits and inpatient hospitalizations but not death. The relative effect of higher‐than‐recommended starting dose dispensed vs. recommended starting dose dispensed was greater in women than it was in men: the number needed to harm was 22 (95% confidence interval (CI)=18–29) for women and 36 (95% CI= 26–61) for men. Conclusion Serious events immediately after initiation of ChEIs were associated with starting ChEI dose. This association was stronger in women.
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- 2018
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11. Effect of an eLearning Memory Program on Reducing Negative Impact of Age-Related Memory Changes
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Lynn Zhu, Danielle D'Amico, Iris Yusupov, Jordan Lass, Brian Levine, Susan Vandermorris, and Angela Troyer
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Cognitive Function ,Abstracts ,Health (social science) ,Session 1045 (Paper) ,sense organs ,Life-span and Life-course Studies ,AcademicSubjects/SOC02600 ,Health Professions (miscellaneous) - Abstract
Age-related memory changes pose considerable concerns for aging adults, and can adversely affect their daily living and cause worry even when changes experienced are not clinically significant. The Memory and Aging Program® is a validated psychoeducation and memory strategy-training program that teaches the public about memory changes during aging and trains them to use evidence-based strategies to support brain health. The program has been offered in-person for over 20 years, and a self-guided eLearning version was recently developed to improve program accessibility. This study evaluated the self-reported impacts of memory changes in older adults who completed this eLearning against a control group. We randomized 202 older adults, without neurological or psychiatric diagnoses (71.6 years; 69 % female; 15.6 years of education), into the eLearning program or a control group that received no intervention. All participants reported their perceived impact of memory changes using the Memory Impact Questionnaire at pre-, post-, and 6-8 weeks follow-up. A significant reduction in negative impact of memory changes on daily living and a significant improvement in positive coping with memory changes relative to controls was observed at post-test (13.4 versus 2.5 points reduction and 7.4 versus 0.1 point improvement, respectively, both p < 0.05), but these did not persist at follow-up. The adoption of digital tools has hastened across all ages. Our study showed that self-guided digital tools, such as the eLearning Memory and Aging Program®, may be a promising avenue to help aging individuals reduce the impact of memory changes on daily living.
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- 2021
12. Sex Differences in the Prevalent Use of Oral Formulations of Cholinesterase Inhibitors in Older Adults with Dementia
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Lisa McCarthy, Nathan M. Stall, Susan E. Bronskill, Vasily Giannakeas, Lynn Zhu, Amanda Alberga, Paula A. Rochon, Andrea Gruneir, Nathan Herrmann, Peter C. Austin, Sudeep S. Gill, and Wei Wu
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Gerontology ,Male ,Palliative care ,Cross-sectional study ,Population ,Administration, Oral ,Comorbidity ,03 medical and health sciences ,0302 clinical medicine ,Prevalence ,Medicine ,Dementia ,Humans ,Pharmacology (medical) ,030212 general & internal medicine ,Cognitive decline ,Sex Distribution ,education ,Aged ,Polypharmacy ,education.field_of_study ,business.industry ,medicine.disease ,Cross-Sectional Studies ,Relative risk ,Female ,Cholinesterase Inhibitors ,Geriatrics and Gerontology ,business ,030217 neurology & neurosurgery - Abstract
Cholinesterase inhibitors (ChEIs) are one of only two drug therapies available to manage cognitive decline in dementia. Given sex-specific differences in medication access and effects, it is important to understand how ChEIs are used by women and men. The objective of this study was to provide contemporary sex-stratified evidence on patterns of ChEI use by community-dwelling older adults with dementia to inform opportunities to optimize drug prescribing. We conducted a population-based cross-sectional study examining ChEI use in older adults with dementia in Ontario, Canada. We identified all community-dwelling individuals aged 66 years and older with a pre-existing diagnosis of dementia as of 1 April, 2016. We examined the prevalence of ChEI use among women and men separately, and explored the association between ChEI use and age, sex, income status, geographic location of residence, use of palliative care services, comorbidity, and polypharmacy. Concurrent use of drugs known to impair cognition (including antipsychotics, benzodiazepines, and medications with strong anticholinergic properties) was separately assessed among women and men using multivariable analyses and prevalence risk ratios. Of 74,799 women and 52,231 men living with dementia in the community, nearly 30% currently were using a ChEI (29.3% women, 28.6% men). Close to 70% of users were receiving the target therapeutic dose. Compared to men, women were less often taking the target therapeutic dose (67.8% women vs. 71.6% men, p < 0.001). Over 20% of users also were using drugs known to impair cognition, while being treated for cognitive decline using ChEIs. Compared to men, women were more often concurrently using drugs known to impair cognition (23.9% women vs. 21.8% men, p < 0.001). This is one of the first studies of ChEI use to account for important sex differences. The results remind clinicians and researchers that patterns of ChEI therapy use differ by sex, as women were less likely to receive target therapeutic doses and more vulnerable to potentially problematic polypharmacy than men.
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- 2019
13. Comparing GPS-Based Community Mobility Measures with Self-report Assessments in Older Adults with Parkinson's Disease
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Guangyong Zou, Christian Duval, Manuel Montero-Odasso, Mandar Jog, Patrick Boissy, Lynn Zhu, and Mark Speechley
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Male ,Aging ,Parkinson's disease ,Intraclass correlation ,Population ,THE JOURNAL OF GERONTOLOGY: Medical Sciences ,Correlation ,03 medical and health sciences ,0302 clinical medicine ,Quality of life ,Activities of Daily Living ,Medicine ,Humans ,030212 general & internal medicine ,Mobility Limitation ,education ,Geriatric Assessment ,Aged ,Ontario ,education.field_of_study ,business.industry ,Parkinson Disease ,Middle Aged ,medicine.disease ,Confidence interval ,Convergent validity ,Global Positioning System ,Geographic Information Systems ,Quality of Life ,Female ,Self Report ,Geriatrics and Gerontology ,business ,030217 neurology & neurosurgery ,Demography - Abstract
Background Real-life community mobility (CM) measures for older adults, especially those with Parkinson’s disease (PD), are important tools when helping individuals maintain optimal function and quality of life. This is one of the first studies to compare an objective global positioning system (GPS) sensor and subjective self-report CM measures in an older clinical population. Methods Over 14 days, 54 people in Ontario, Canada with early to mid-stage PD (mean age = 67.5 ± 6.3 years; 47 men; 46 retired) wore a wireless inertial measurement unit with GPS (WIMU-GPS), and completed the Life Space Assessment and mobility diaries. We assessed the convergent validity, reliability and agreement on mobility outcomes using Spearman’s correlation, intraclass correlation coefficient, and Bland-Altman analyses, respectively. Results Convergent validity was attained by the WIMU-GPS for trip frequency (rs = .69, 95% confidence interval [CI] = 0.52–0.81) and duration outside (rs = .43, 95% CI = 0.18–0.62), but not for life space size (rs = .39, 95% CI = 0.14–0.60). The Life Space Assessment exhibited floor and ceiling effects. Moderate agreements were observed between WIMU-GPS and diary for trip frequency and duration (intraclass correlation coefficients = 0.71, 95% CI = 0.51–0.82; 0.67, 95% CI = 0.42–0.82, respectively). Disagreement was more common among nonretired individuals. Conclusions WIMU-GPS could replace diaries for trip frequency and duration assessments in older adults with PD. Both assessments are best used for retired persons. However, the Life Space Assessment may not reflect actual mobility.
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- 2019
14. Evaluation of a Common Prescribing Cascade of Calcium Channel Blockers and Diuretics in Older Adults With Hypertension
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Jessica D. Visentin, Vasily Giannakeas, Miles J Luke, Jun Guan, Wei Wu, Nathan M. Stall, Susan E. Bronskill, Lisa McCarthy, Xuesong Wang, Stephanie H. Read, Andrea Gruneir, Paula A. Rochon, Kenneth Lam, Lynn Zhu, and Rachel D. Savage
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Male ,medicine.medical_specialty ,Prescription drug ,medicine.drug_class ,Population ,Peripheral edema ,Drug Prescriptions ,01 natural sciences ,03 medical and health sciences ,0302 clinical medicine ,Sodium Potassium Chloride Symporter Inhibitors ,Internal medicine ,Internal Medicine ,medicine ,Edema ,Humans ,Cumulative incidence ,030212 general & internal medicine ,Practice Patterns, Physicians' ,0101 mathematics ,education ,Aged ,Aged, 80 and over ,education.field_of_study ,business.industry ,010102 general mathematics ,Hazard ratio ,Loop diuretic ,Calcium Channel Blockers ,Treatment Outcome ,Hypertension ,Cohort ,Female ,medicine.symptom ,business ,Cohort study - Abstract
Calcium channel blockers (CCBs) are commonly prescribed agents for hypertension that can cause peripheral edema. A prescribing cascade occurs when the edema is misinterpreted as a new medical condition and a diuretic is subsequently prescribed to treat the edema. The extent to which this prescribing cascade occurs at a population level is not well understood.To measure the association between being newly dispensed a CCB and subsequent dispensing of a loop diuretic in older adults with hypertension.A population-based cohort study was performed using linked health administrative databases of community-dwelling adults 66 years or older with hypertension and new prescription drug claims from September 30, 2011, to September 30, 2016, in Ontario, Canada. The dates of analysis were September 1, 2018, to May 30, 2019.Individuals who were newly dispensed a CCB were compared with the following 2 groups: (1) individuals who were newly dispensed an angiotensin-converting enzyme inhibitor or angiotensin II receptor blocker and (2) individuals who were newly dispensed an unrelated medication.Hazard ratios (HRs) with 95% CIs were estimated for individuals who were dispensed a loop diuretic within 90 days of follow-up using Cox proportional hazards regression models.The cohort included 41 086 older adults (≥66 years) with hypertension who were newly dispensed a CCB, 66 494 individuals who were newly dispensed another antihypertensive medication, and 231 439 individuals who were newly dispensed an unrelated medication. At index (ie, the dispensing date), the mean (SD) age was 74.5 (6.9) years, and 191 685 (56.5%) were women. Individuals who were newly dispensed a CCB had a higher cumulative incidence at 90 days of being dispensed a loop diuretic than individuals in both control groups (1.4% vs 0.7% and 0.5%, P .001). After adjustment, individuals who were newly dispensed a CCB had increased relative rates of being dispensed a loop diuretic compared with individuals who were newly dispensed an angiotensin-converting enzyme inhibitor or angiotensin II receptor blocker (HR, 1.68; 95% CI, 1.38-2.05 in the first 30 days after index [days 1-30]; 2.26; 95% CI, 1.76-2.92 in the subsequent 30 days [days 31-60]; and 2.40; 95% CI, 1.84-3.13 in the third month of follow-up [days 61-90]) and individuals who were newly dispensed unrelated medications (HR, 2.51; 95% CI, 2.13-2.96 for 1-30 days after index; 2.99; 95% CI, 2.43-3.69 for 31-60 days after index; and 3.89; 95% CI, 3.11-4.87 for 61-90 days after index). This association persisted, although slightly attenuated, from 90 days to up to 1 year of follow-up and when restricted to a subgroup of individuals who were newly dispensed amlodipine.Many older adults with hypertension who are newly dispensed a CCB subsequently receive a loop diuretic. Given how widely CCBs are prescribed, interventions are needed to raise clinicians' awareness of this common prescribing cascade to reduce the prescribing of potentially unnecessary medications that may cause harm.
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- 2020
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15. What Is Known About Preventing, Detecting, and Reversing Prescribing Cascades: A Scoping Review
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Hana, Brath, Nishila, Mehta, Rachel D, Savage, Sudeep S, Gill, Wei, Wu, Susan E, Bronskill, Lynn, Zhu, Jerry H, Gurwitz, and Paula A, Rochon
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Internationality ,Drug-Related Side Effects and Adverse Reactions ,Pharmaceutical Preparations ,Humans ,Inappropriate Prescribing ,Administrative Claims, Healthcare ,Aged - Abstract
To systematically describe the resources available on preventing, detecting, and reversing prescribing cascades using a scoping review methodology.We searched Medline, EMBASE, PsychINFO, CINAHL, Cochrane Library, and Sociological Abstracts from inception until July 2017. Other searches (Google Scholar, hand searches) and expert consultations were performed for resources examining how to prevent, detect, or reverse prescribing cascades. We used these three categories along the prescribing continuum as an organizing framework to categorize and synthesize resources.Of 369 resources identified, 58 met inclusion criteria; 29 of these were categorized as preventing, 20 as detecting, and 9 as reversing prescribing cascades. Resources originated from 14 countries and mostly focused on older adults. The goal of preventing resources was to educate and increase general awareness of the concept of prescribing cascades as a way to prevent inappropriate prescribing and to illustrate application of the concept to specific drugs (e.g., anticholinergics) and conditions (e.g., inflammatory bowel disease). Detecting resources included original investigations or case reports that identified prescribing cascades using health administrative data, patient cohorts, and novel sources such as social media. Reversing prescribing cascade resources focused on the medication review process and deprescribing initiatives.Prescribing cascades are a recognized problem internationally. By learning from the range of resources to prevent, detect, and reverse prescribing cascades, this review contributes to improving drug prescribing, especially in older adults. J Am Geriatr Soc 66:2079-2085, 2018.
- Published
- 2018
16. Comparison of prescribing practices for older adults treated by female versus male physicians: A retrospective cohort study
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Nathan Herrmann, Andrea Gruneir, Susan E. Bronskill, Vasily Giannakeas, Sharon-Lise T. Normand, Rachel D. Savage, Lynn Zhu, Dallas Seitz, Sudeep S. Gill, Jerry H. Gurwitz, Peter C. Austin, Wei Wu, Paula A. Rochon, Nathan M. Stall, Lisa McCarthy, Chaim M. Bell, and Colin Faulkner
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Male ,Medical Doctors ,Health Care Providers ,lcsh:Medicine ,030204 cardiovascular system & hematology ,Conservative Treatment ,Biochemistry ,0302 clinical medicine ,Elderly ,Medicine and Health Sciences ,030212 general & internal medicine ,Medical Personnel ,Practice Patterns, Physicians' ,Enzyme Inhibitors ,lcsh:Science ,Geriatrics ,Aged, 80 and over ,Ontario ,Multidisciplinary ,Pharmaceutics ,Middle Aged ,3. Good health ,Professions ,Neurology ,Research Design ,Female ,Specialization ,Research Article ,Adult ,medicine.medical_specialty ,Clinical Research Design ,Geriatric Psychiatry ,Specialty ,Research and Analysis Methods ,Time-to-Treatment ,03 medical and health sciences ,Pharmacotherapy ,Risk-Taking ,Sex Factors ,Drug Therapy ,Internal medicine ,Physicians ,Mental Health and Psychiatry ,medicine ,Humans ,Medical prescription ,Adverse effect ,Aged ,Retrospective Studies ,business.industry ,lcsh:R ,Biology and Life Sciences ,Retrospective cohort study ,Odds ratio ,Confidence interval ,Health Care ,Age Groups ,People and Places ,Enzymology ,lcsh:Q ,Dementia ,Population Groupings ,Cholinesterase Inhibitors ,Adverse Events ,business - Abstract
Importance Subtle but important differences have been described in the way that male and female physicians care for their patients, with some evidence suggesting women are more likely to adhere to best practice recommendations. Objective To determine if male and female physicians differ in their prescribing practices as measured by the initiation of lower-than-recommended dose cholinesterase inhibitor (ChEI) drug therapy for dementia management. Design, setting, and participants All community-dwelling Ontario residents aged 66 years and older with dementia and newly dispensed an oral ChEI drug (donepezil, galantamine, or rivastigmine) between April 1, 2010 and June 30, 2016 were included. Main outcome and measures The association between physician sex and the initiation of a lower than recommended-dose ChEI was examined using generalized linear mixed regression models, adjusting for patient and physician characteristics. Data were stratified by specialty. Secondary analyses explored the association between physician sex and cardiac screening as well as shorter duration of the initial prescription. Results The analysis included 3,443 female and 5,811 male physicians and the majority (83%) were family physicians, Female physicians were more likely to initiate ChEI therapy at a lower-than-recommended dose (Adjusted odds ratio = 1.43,95% confidence interval = 1.17 to 1.74). Compared to their male counterparts, female physicians were also more likely to follow other conservative prescribing practices including cardiac screening (55.1% vs. 49.2%, P-value
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- 2018
17. P4-401: DEMENTIA 2.0: AN EXPLORATORY ANALYSIS OF TWITTER AND HEALTH FORUM DATA
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Ishinder Ghuman, Lynn Zhu, Rachel D. Savage, Paula A. Rochon, Nishila Mehta, Wei Wu, Kenneth Lam, and Susan E. Bronskill
- Subjects
Gerontology ,Psychiatry and Mental health ,Cellular and Molecular Neuroscience ,Developmental Neuroscience ,Epidemiology ,Health Policy ,medicine ,Dementia ,Neurology (clinical) ,Exploratory analysis ,Geriatrics and Gerontology ,Psychology ,medicine.disease - Published
- 2019
- Full Text
- View/download PDF
18. Canada's Health Human Resource Challenges: What is the Fate of Our Healthcare Heroes?
- Author
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Paul A.W. Gamble, Karim S. Bandali, and Lynn Zhu
- Subjects
Canada ,Medical education ,HRHIS ,Scope (project management) ,business.industry ,Health Policy ,education ,Allied Health Personnel ,Health administration ,Nursing ,Health care ,Specialization (functional) ,Humans ,Medicine ,Health education ,business ,Human resources ,Health policy ,Specialization - Abstract
Each year, the Canadian health education system graduates thousands of health professionals who have the best intentions of practising to their full scope of knowledge and skills to help improve the patient care experience in this country. However, a recent research study points to the fact that members of the healthcare team may be practising in a challenging environment in which only a limited number of their skills are actually being used. The Michener Institute for Applied Health Sciences believes that these issues, which include increased role specialization, limited scopes of practice, rapidly advancing technology, and challenges transitioning from hospital to community settings, have broader health education and health system implications that need to be addressed by policy makers, educators, and healthcare system leaders in order to enhance health professional education as well as patient care.
- Published
- 2011
- Full Text
- View/download PDF
19. The Authors Respond
- Author
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A. Williams, Janet Lum, Raisa Deber, Robin Montgomery, Kerry Kuluski, Allie Peckham, Jillian Watkins, Alex Williams, Alvin Ying, and Lynn Zhu
- Published
- 2009
- Full Text
- View/download PDF
20. Prevention of poststroke depression: does prophylactic pharmacotherapy work?
- Author
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Lynn Zhu, Jeffrey W. Jutai, Katherine Salter, Norine Foley, and Robert Teasell
- Subjects
Male ,medicine.medical_specialty ,Serotonin reuptake inhibitor ,Neuropsychological Tests ,law.invention ,Pharmacotherapy ,Randomized controlled trial ,Quality of life ,law ,Internal medicine ,medicine ,Humans ,Psychiatry ,Stroke ,Aged ,Randomized Controlled Trials as Topic ,Depressive Disorder ,business.industry ,Rehabilitation ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,Antidepressive Agents ,Meta-analysis ,Quality of Life ,Surgery ,Female ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,business - Abstract
Background: Given the negative influence of poststroke depression (PSD) on functional recovery, cognition, social participation, quality of life, and risk for mortality, the early initiation of antidepressant therapy to prevent its development has been investigated; however, individual studies have offered conflicting evidence. The present systematic review and meta-analysis examined available evidence from published randomized controlled trials (RCTs) evaluating the effectiveness of pharmacotherapy for the prevention of PSD to provide updated pooled analyses. Methods: Literature searches of 6 databases were performed for the years 1990 to 2011. RCTs meeting study inclusion criteria were evaluated for methodologic quality. Data extracted included the antidepressant therapy used, treatment timing and duration, method(s) of assessment, and study results pertaining to the onset of PSD. Pooled analyses were conducted.Results: Eight RCTs were identified for inclusion. Pooled analyses demonstrated reduced odds for the development of PSD associated with pharmacologic treatment (odds ratio [OR] 0.34; 95% confidence interval [CI] 0.22-0.53; P , .001), a treatment duration of 1 year (OR 0.31; 95% CI 0.18-0.56; P ,.001), and the use of a selective serotonin reuptake inhibitor (OR 0.37; 95% CI 0.22-0.61; P ,.001). Conclusions: The early initiation of antidepressant therapy, in nondepressed stroke patients, may reduce the odds for development of PSD. Optimum timing and duration for treatment and the identification of the most appropriate recipients for a program of indicated prevention require
- Published
- 2012
21. Aging at home: integrating community-based care for older persons
- Author
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Allie Peckham, A. Paul Williams, Raisa B. Deber, Jillian Watkins, Robin Montgomery, Lynn Zhu, Janet Lum, Kerry Kuluski, Alex Williams, and Alvin Ying
- Subjects
International research ,Ontario ,Guiding Principles ,business.industry ,Delivery of Health Care, Integrated ,Health Services for the Aged ,Health Policy ,Public relations ,Home Care Services ,Work (electrical) ,Sustainability ,International literature ,Humans ,Sociology ,Community-based care ,business ,Health policy ,Healthcare system ,Aged - Abstract
Integrating community-based health and social care has grabbed international attention as a way of addressing the needs of aging populations while contributing to health systems' sustainability. However, integrating initiatives in different jurisdictions work (or do not work) within very various institutional and structural dynamics. The question is, what transferable lessons can we learn to guide policy makers and policy innovators at the local level? In this paper, we consider "aging at home" as a policy option in Ontario, and beyond. In the first section, we focus on the problem, in effect, what not to do. Here, we briefly review findings from national and international research literature and from our own research in Ontario that identify the costs and consequences of non-systems of care for older persons. In the second part, we turn to solutions, in effect, what to do. Drawing on our recent scoping review of the international literature, we identify three guiding principles, as well as a number of recommendations, for integrating care for older persons, knowing that important details of how to put such initiatives "on the ground" will be provided by other contributors to this journal edition.
- Published
- 2010
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