Research Topics
| D B HoganSummaryAffiliation: University of Calgary Country: Canada Publications
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Publications
A pragmatic study exploring the prevention of delirium among hospitalized older hip fracture patients: Applying evidence to routine clinical practice using clinical decision supportJayna M Holroyd-Leduc
Foothills Medical Center, 1403 29th Street NW, Calgary, University of Calgary, Calgary, Alberta, Canada
Implement Sci 5:81. 2010..20). Translation of evidence-based multi-component delirium prevention strategies into everyday clinical care, using the electronic medical record, was not found to be effective at decreasing delirium rates among hip facture patients...
Sex differences in the relative contribution of social and clinical factors to the Health Utilities Index Mark 2 measure of health-related quality of life in older home care clientsColleen J Maxwell
Department of Community Health Sciences and Centre for Health and Policy Studies, University of Calgary, Calgary, Alberta, Canada
Health Qual Life Outcomes 7:80. 2009..We examined the relative contribution of social and clinical factors to HRQL among older home care clients and explored whether any of the observed associations varied by sex...
A multidisciplinary systematic literature review on frailty: overview of the methodology used by the Canadian Initiative on Frailty and AgingSathya Karunananthan
Solidage Research Group, McGill University Université de Montréal, Montreal, Canada
BMC Med Res Methodol 9:68. 2009..This paper describes the methodology that was developed for the systematic reviews...
Operationalizing frailty among older residents of assisted living facilitiesElizabeth A Freiheit
Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
BMC Geriatr 11:23. 2011..We examined the feasibility and predictive accuracy of two different interpretations of the Cardiovascular Health Study (CHS) frailty criteria in a population-based sample of AL residents...
Prevalence and potential consequences of benzodiazepine use in senior citizens: results from the Canadian Study of Health and AgingDavid B Hogan
Department of Medicine, Health Sciences Centre, Calgary, Canada
Can J Clin Pharmacol 10:72-7. 2003..The aim of this study was to evaluate changes in benzodiazepine use over time, and the association between benzodiazepine use and select outcomes...
Which older patients are competent to drive? Approaches to office-based assessmentDavid B Hogan
University of Calgary, Alberta
Can Fam Physician 51:362-8. 2005..To review three proposed approaches to office-based assessment of older drivers and to evaluate recommendations made about dementia and driving...
Regional variation in the use of medications by older Canadians--a persistent and incompletely understood phenomenaD B Hogan
Department of Medicine, Clinical Neurosciences, Community Health Sciences and University Computing, University of Calgary, Calgary, Alberta, Canada
Pharmacoepidemiol Drug Saf 12:575-82. 2003..In this study, we used longitudinal data to determine whether regional differences in commonly consumed medications persisted and to explore potential explanatory factors for observed differences...
A randomized controlled trial of a community-based consultation service to prevent fallsD B Hogan
Specialized Geriatric Services, Calgary Regional Health Authority, Departments of Medicine and Community Health Sciences, University of Calgary, Calgary, Alta
CMAJ 165:537-43. 2001..We tested this approach to see whether it would be effective if offered as a consultation service using existing health care resources...
Diagnosis and treatment of dementia: 4. Approach to management of mild to moderate dementiaDavid B Hogan
Departments of Medicine and Clinical Neurosciences, University of Calgary, Calgary, Alta
CMAJ 179:787-93. 2008..In this article, we provide practical guidance on management based on recommendations from the Third Canadian Consensus Conference on the Diagnosis and Treatment of Dementia...
Comparison studies of cholinesterase inhibitors for Alzheimer's diseaseDavid B Hogan
Division of Geriatric Medicine, University of Calgary, Calgary, Alberta, Canada
Lancet Neurol 3:622-6. 2004..Between 27% and 55% of CONSORT items per study were rated as inadequately reported. The methodological limitations of these studies reduce our confidence in the validity of the conclusions drawn in the published reports...
Diagnosis and treatment of dementia: 5. Nonpharmacologic and pharmacologic therapy for mild to moderate dementiaDavid B Hogan
Department of Clinical Neurosciences, Health Sciences Centre, University of Calgary, 3330 Hospital Dr NW, Calgary, ABT2N4N1
CMAJ 179:1019-26. 2008....
Health, function and survival of a cohort of very old Canadians: results from the second wave of the Canadian Study of Health and AgingD B Hogan
Department of Medicine, University of Calgary, Alberta
Can J Public Health 90:338-42. 1999..While disease prevention, health promotion and environmental modifications may decrease the personal and societal impacts of these age-associated findings, health care planning for the very old should take these data into account...
Did Osler suffer from "paranoia antitherapeuticum baltimorensis"? A comparative content analysis of The Principles and Practice of Medicine and Harrison's Principles of Internal Medicine, 11th editionD B Hogan
Division of Geriatric Medicine, University of Calgary, Alta
CMAJ 161:842-5. 1999..A more accurate statement about Osler's therapeutic approach was that he was a "medicinal nihilist." His demand for proof of efficacy before use of a medication remains relevant...
Models, definitions, and criteria of frailtyDavid B Hogan
Division of Geriatric Medicine, University of Calgary, Calgary, Alberta, Canada
Aging Clin Exp Res 15:1-29. 2003
Donepezil for severe Alzheimer's diseaseDavid B Hogan
Division of Geriatric Medicine, University of Calgary Health Sciences Centre, Calgary, Alberta T2N 4N1, Canada
Lancet 367:1031-2. 2006
Disease, disability, and age in cognitively intact seniors: results from the Canadian Study of Health and AgingD B Hogan
Department of Medicine, University Computing Services, Alberta, Canada
J Gerontol A Biol Sci Med Sci 54:M77-82. 1999..This report contrasts disability in the old-old (85 years of age or older, 85+) with younger seniors (65-84 years of age) and examines whether diseases have an equivalent impact on the two groups...
Lipid-lowering agents and the risk of cognitive impairment that does not meet criteria for dementia, in relation to apolipoprotein E statusKenneth Rockwood
Division of Geriatric Medicine, Dalhousie University, Halifax, NS, Canada
Neuroepidemiology 29:201-7. 2007..Adjusting for apolipoprotein E4 status did not change the point estimates of the ORs. The greatest impact of LLAs was seen in the CIND subtype circumscribed memory impairment...
Calcium-channel blockers and cognitive function in elderly people: results from the Canadian Study of Health and AgingC J Maxwell
Department of Community Health Sciences, University of Calgary, Alta
CMAJ 161:501-6. 1999..This study was undertaken to examine prospectively the association between the use of these and other antihypertensive drugs and cognitive function...
Conceptualisation and measurement of frailty in elderly peopleK Rockwood
Division of Geriatric Medicine, Dalhousie University, QEII Health Sciences Centre, Halifax, Nova Scotia, Canada
Drugs Aging 17:295-302. 2000..Future models of frailty should incorporate more precise operationalisation of the probability of frailty and better explain the relationship between disease, disability and frailty...
Measuring health status and decline in at-risk seniors residing in the community using the Health Utilities Index Mark 2Jenny X Zhang
Department of Community Health Sciences, University of Calgary, Health Sciences Centre, Calgary, AB, T2N 4N1, Canada
Qual Life Res 15:1415-26. 2006..CONCLUSION: The HUI2 measure of HRQL in older persons at risk for institutionalization appears to reflect health status at a point in time and to be responsive to changes in health status over time...
Exercise: a potential contributing factor to the relationship between folate and dementiaLaura E Middleton
Division of Geriatric Medicine, Dalhousie University, Halifax, Canada
J Am Geriatr Soc 55:1095-8. 2007..To investigate whether exercise confounds the relationship between folate and cerebrovascular events, all-cause dementia, and Alzheimer's disease...
Study of observed and self-reported HRQL in older frail adults found group-level congruence and individual-level differencesWalter P Wodchis
Department of Health Policy, Management and Evaluation, University of Toronto, Canada
J Clin Epidemiol 60:502-11. 2007..To evaluate the consistency of self-reported health-related quality of life (HRQL) using the Health Utilities Index Mark 2 (HUI2) with observer rated HRQL using the Minimum Data Set Health-Status Index (MDS-HSI)...
Osler and the Jewish peopleD B Hogan
University of Calgary, Calgary, Alta
CMAJ 156:1559-62. 1997..Abraham Jacobi. Osler was not a saint, and he had his "rough side," but in his relationships with Jewish colleagues his example remains relevant...
Prevalence and outcomes of vascular cognitive impairment. Vascular Cognitive Impairment Investigators of the Canadian Study of Health and AgingK Rockwood
Division of Geriatric Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
Neurology 54:447-51. 2000....
Transition from cognitively impaired not demented to Alzheimer's disease: an analysis of changes in functional abilities in a dementia clinic cohortGing Yuek R Hsiung
Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
Dement Geriatr Cogn Disord 25:483-90. 2008..We evaluated whether impairments on the Disability Assessment for Dementia (DAD) and Functional Rating Scale (FRS) can predict progression to AD...
Prognostic factors for functional independence in older adults with mild dementia: results from the canadian study of health and agingAnne Perrault
Center de Recherche, , Quebec, Canada
Alzheimer Dis Assoc Disord 16:239-47. 2002..Prior studies on the time required for patients with dementia to progress to functional milestones used clinic-based samples. Our findings, which have potential public health implications, need to be confirmed and expanded upon...
Neuropsychiatric symptom clusters and functional disability in cognitively-impaired-not-demented individualsKevin R Peters
Department of Psychology, Trent University, Peterborough, Ontario, Canada
Am J Geriatr Psychiatry 16:136-44. 2008....
The effect of the living situation on the severity of dementia at diagnosisA Sibley
Division of Geriatric Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
Dement Geriatr Cogn Disord 13:40-5. 2002..2, GDS 4.8, FRS 27.5, DAD 16.9). CONCLUSION: Living situation is related to the severity of dementia at diagnosis. Primary care providers should have a low threshold for case-finding in older adults who live with family or friends...
Family physicians' attitudes and practices regarding assessments of medical fitness to drive in older personsRaymond W Jang
Department of Medicine, University of Toronto, Toronto, ON, Canada
J Gen Intern Med 22:531-43. 2007..Higher crash rates per mile driven in older drivers have focused attention on the assessment of older drivers...
Serum folate levels and subsequent adverse cerebrovascular outcomes in elderly personsColleen J Maxwell
Department of Community Health Sciences, Medicine, University of Calgary, Alta, Canada
Dement Geriatr Cogn Disord 13:225-34. 2002..Low serum folate levels are independently associated with a significantly higher risk of an adverse cerebrovascular event, including vascular dementia and stroke death, among older, cognitively vulnerable persons...
The prevalence and management of current daily pain among older home care clientsColleen J Maxwell
Department of Community Health Sciences, Faculty of Medicine, University of Calgary, 3330 Hospital Drive NW, Calgary, AB, Canada
Pain 138:208-16. 2008..The findings provide evidence of both rational prescribing practices and potential treatment bias in the pharmacotherapeutic management of daily pain in older home care clients...
Dual-track CME: accuracy and outcomeJocelyn M Lockyer
University of Calgary, 3330 Hospital Drive, Canada
Acad Med 77:S61-3. 2002
Development of a frailty index for patients with coronary artery diseaseElizabeth A Freiheit
Department of Community Health Sciences, University of Calgary, Calgary, Alberta, Canada
J Am Geriatr Soc 58:1526-31. 2010....
Assessing outcomes through congruence of course objectives and reflective workJocelyn M Lockyer
Department of Community Health Sciences, and Continuing Medical Education and Professional Development, University of Calgary, Calgary, Alberta, Canada
J Contin Educ Health Prof 25:76-86. 2005..This study assessed the congruence of course objectives and statements of commitment to change, effects on practice, unmet-needs, and the utility of supplementing CTCs with other forms of reflective work in course evaluations...
Supplemental use of antioxidant vitamins and subsequent risk of cognitive decline and dementiaColleen J Maxwell
Department of Community Health Sciences, University of Calgary, Calgary, Canada
Dement Geriatr Cogn Disord 20:45-51. 2005..89). A reduced risk for incident dementia or AD was not observed. Our findings suggest a possible protective effect for antioxidant vitamins in relation to cognitive decline but randomized controlled trials are required for confirmation...
Outcomes of cognitively impaired not demented at 2 years in the Canadian Cohort Study of Cognitive Impairment and Related DementiasGing-Yuek R Hsiung
Division of Neurology, Department of Medicine University of British Columbia, Vancouver, Canada
Dement Geriatr Cogn Disord 22:413-20. 2006..CONCLUSION: CIND consists of a heterogeneous group of disorders that can be classified syndromically. Many subclassess - not just those with pre-AD CIND - are at high risk of progression to dementia, usually to Alzheimer's disease...
Recommendations of the Canadian Consensus Conference on Dementia--dissemination, implementation, and evaluation of impactD B Hogan
Division of Geriatric Medicine, University of Calgary, Health Sciences Center, Alberta, Canada
Can J Neurol Sci 28:S115-21. 2001..CONCLUSIONS: Further work is needed on how to optimize the impact of consensus statements and CPGs. While dissemination of the CCCD has occurred, it is currently unknown whether it has led to any change in physician practices...
The recognition, assessment and management of dementing disorders: conclusions from the Canadian Consensus Conference on DementiaC Patterson
Department of Medicine, McMaster University, Hamilton, ON, Canada
Can J Neurol Sci 28:S3-16. 2001..These recommendations are generally congruent with our own consensus statements. The consensus statements have been endorsed by relevant bodies in Canada...
Prevalence, attributes, and outcomes of fitness and frailty in community-dwelling older adults: report from the Canadian study of health and agingKenneth Rockwood
Division of Geriatric Medicine, Dalhousie University, Halifax, Nova Scotia, Canada
J Gerontol A Biol Sci Med Sci 59:1310-7. 2004..Frailty and fitness are important attributes of older persons, but population samples of their prevalence, attributes, and outcomes are limited...
Clinical and radiographic subtypes of vascular cognitive impairment in a clinic-based cohort studyKenneth Rockwood
Dalhousie University, Canada
J Neurol Sci 240:7-14. 2006..There is a need for empirical studies to define criteria for vascular cognitive impairment (VCI) subtypes. In this paper, we report the predictive validity of a subtype classification scheme based on clinical and radiographic features...
Identifying potentially avoidable hospital admissions from canadian long-term care facilitiesJennifer D Walker
Canadian Institute for Health Information, Calgary, Alberta, Canada
Med Care 47:250-4. 2009....
Factors associated with pharmacologic treatment of osteoporosis in an older home care populationShelly A Vik
Department of Community Health Sciences, Faculty of Medicine, University of Calgary, 3330 Hospital Drive N W, Calgary, AB, Canada T2N 4N1
J Gerontol A Biol Sci Med Sci 62:872-8. 2007..Our objective was to examine which sociodemographic, clinical, and functional characteristics are associated with pharmacotherapy for osteoporosis among community-based seniors...
Measurement, correlates, and health outcomes of medication adherence among seniorsShelly A Vik
Department of Community Health Sciences, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
Ann Pharmacother 38:303-12. 2004..Future research in this area would be strengthened by incorporation of detailed assessments of patient-reported reasons for nonadherence, the appropriateness of drug regimens, and the effect of nonadherence on health outcomes...
Progress in clinical neurosciences: Treatment of Alzheimer's disease and other dementias--review and comparison of the cholinesterase inhibitorsDavid B Hogan
Department of Medicine, University of Calgary, Calgary. Alberta, Canada
Can J Neurol Sci 29:306-14. 2002..We view all three available cholinesterase inhibitors as first-line drugs...
Nascher and frailtyDavid B Hogan
J Am Geriatr Soc 54:715. 2006
Use of lipid-lowering agents, indication bias, and the risk of dementia in community-dwelling elderly peopleKenneth Rockwood
Geriatric Medicine Research Unit, Queen Elizabeth II Health Sciences Centre, 5955 Veterans Memorial Ln, Room 1421, Halifax, Nova Scotia, Canada B3H 2E1
Arch Neurol 59:223-7. 2002..This association could be due to indication bias, i.e., people who elect to take lipid-lowering agents (LLAs) may be healthier than those who do not, so that it may be these other health factors that explain their lower risk of dementia...
The Consortium to Investigate Vascular Impairment of Cognition: methods and first findingsKenneth Rockwood
Dalhousie University, Halifax, NS, Canada
Can J Neurol Sci 30:237-43. 2003..Even for patients who do, the proportion identified with VaD varies widely. Criteria based on empirical analyses need to be developed and validated...
Revisiting the O complex: urinary incontinence, delirium and polypharmacy in elderly patientsD B Hogan
University of Calgary, Alta
CMAJ 157:1071-7. 1997..The occurrence of these problems should lead to careful evaluation followed by thoughtful, responsive treatment. Brief updates are given with recommendations for management directed at primary care physicians...
Medication nonadherence and subsequent risk of hospitalisation and mortality among older adultsShelly A Vik
Department of Community Health Sciences, University of Calgary, Alberta, Canada
Drugs Aging 23:345-56. 2006..The absence of a significant association between overall medication nonadherence and health outcomes may reflect study limitations and/or the need to differentiate among types of nonadherent behaviours...
Improving drug trials for mild to moderate Alzheimer's diseaseDavid B Hogan
Health Sciences Centre, University of Calgary, Calgary, Alberta, Canada
Can J Neurol Sci 34:S97-102. 2007..Recommendations are made to deal with the issues raised...
Microscopic colitis -- a common cause of diarrhoea in older adultsJennifer J Williams
Division of Gastroenterology, Department of Medicine, University of Calgary, Calgary, Alberta, Canada
Age Ageing 39:162-8. 2010..In this review, we outline the epidemiology, risk factors associated with MC, its pathophysiology, the approach to diagnosis and the management of these individuals...
A global clinical measure of fitness and frailty in elderly peopleKenneth Rockwood
Division of Geriatric Medicine, Dalhousie University, Halifax, NS
CMAJ 173:489-95. 2005..77 for 18-month and 0.70 for 70-month mortality). INTERPRETATION: Frailty is a valid and clinically important construct that is recognizable by physicians. Clinical judgments about frailty can yield useful predictive information...
Physician supply: future tenseChris MacKnight
CMAJ 169:750-1; author reply 752-3. 2003
If we live long enough, will we all be demented?: reduxDavid B Hogan
Neurology 71:310-1. 2008
Why the surprise?David B Hogan
CMAJ 174:1746. 2006
History of geriatrics in CanadaDavid B Hogan
Brenda Strafford Foundation Chair in Geriatric Medicine, University of Calgary
Can Bull Med Hist 24:131-50. 2007..The choices made by the leaders of Canadian geriatrics molded the evolution of the specialty and have contributed to its precarious status at the present time...
Frailty: an emerging research and clinical paradigm--issues and controversiesHoward Bergman
Division of Geriatric Medicine, Jewish General Hospital McGill University, 3755 Cote Ste Catherine, Montreal, QC, Canada H3T 1E2
J Gerontol A Biol Sci Med Sci 62:731-7. 2007..Although consensus has yet to be attained, work accomplished to date has opened exciting new horizons. The article concludes with suggested directions for future research...
Improving recruitment into geriatric medicine in Canada: Findings and recommendations from the geriatric recruitment issues studySusan J Torrible
Geriatric Assessment and Consultation Program, Windsor Regional Hospital, Windsor, Ontario, Canada
J Am Geriatr Soc 54:1453-62. 2006..Based on the GRIST findings, this article proposes six recommendations for improving recruitment into Canadian geriatric medicine training programs...
Does self-rated health predict survival in older persons with cognitive impairment?Jennifer D Walker
Department of Community Health Sciences, University of Calgary, 3330 Hospital Drive NW, Calgary, Alberta T2N 4N1, Canada
J Am Geriatr Soc 52:1895-900. 2004..The findings highlight the potential role of complex cognitive processes underlying the SRH-mortality relationship...
Patient sheet: tips for avoiding problems with polypharmacyDavid B Hogan
Health Sciences Centre, Calgary, Alta
CMAJ 175:876. 2006
Cardiac report cards: the good, the bad and the unknownDavid B Hogan
Can J Cardiol 20:329-30. 2004
