1. Laval University Geriatric Research Unit, Quebec, QC, Canada
2. Department of Social and Preventive Medicine, Laval University, QC, Canada
3. Surveillance and Risk Assessment Division, Center for Chronic Disease Prevention and Control, Health Canada and Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, ON, Canada
4. Quebec Public Health Center, Beauport, QC, Canada
5. Department of Human Biology and Nutritional Sciences, University of Guelph, Guelph, ON, Canada