Original ArticleAdvance Directives for Health Care and Research: Prevalence and CorrelatesBravo, Gina PhD; Dubois, Marie-France PhD; Pâquet, Mariane MScAuthor Information From the Department of Community Health Sciences, Faculty of Medicine, University of Sherbrooke (Drs Bravo and Dubois); and Research Centre on Aging, Sherbrooke University Geriatric Institute, Sherbrooke, Quebec, Canada (Drs Bravo, Dubois and Pâquet). Received for publication December 26, 2002; accepted July 11, 2003. Supported by the Alzheimer Society of Canada and the Fonds de la recherche en santé du Québec. Reprints: Gina Bravo, PhD, Research Centre on Aging, Sherbrooke University Geriatric Institute, 1036 Belvedere South, Sherbrooke, Quebec J1H 4C4, Canada (e-mail: Gina.Bravo@USherbrooke.ca). Alzheimer Disease & Associated Disorders: October-December 2003 - Volume 17 - Issue 4 - p 215-222 Buy Abstract Patients suffering from Alzheimer disease and other types of dementia gradually lose their decision-making capacity. Advance directives have been widely promoted as a means to maintain some control over one's life in the event of decisional incompetence. This study used data from a recent postal survey conducted in Quebec, Canada to: 1) estimate the prevalence of formal and informal advance directives for health care and research among community-dwelling older adults presumed free of cognitive deficits; and 2) characterize those who have communicated their preferences regarding health care and research participation. Prevalence rates vary from 7.4% (formal advance directives for research) to 42.3% (informal advance directives for health care). Following multivariate logistic regressions, individuals who have communicated their wishes regarding future health care were found to be older, predominantly women, and to more often know someone with cognitive impairment. Those who have expressed their wishes regarding future research involvement were more inclined to participate in research. They were also more likely to have discussed or written advance directives for health care. The finding that only a small proportion of older adults have discussed future research participation with their families points to the need to find effective ways to promote advance directives for research in this population. © 2003 Lippincott Williams & Wilkins, Inc.