Planning and Development Research Center, Université Laval, Quebec city, Québec, Canada. Evaluation Platform on Obesity Prevention, Quebec Heart and Lung Research Institute, Quebec city, Québec, Canada. School of Nutrition, Université Laval, Quebec city, Québec, Canada. Quebec Heart and Lung Institute Research Centre, Université Laval, Quebec city, Québec, Canada. Departement of Surgery, Université Laval, Quebec city, Québec, Canada. Department of Civil, Geological and Mining Engineering, Polytechnique Montreal, Montreal, Québec, Canada. Planning and Development Research Center, Université Laval, Quebec city, Québec, Canada alexandre.lebel@criucpq.ulaval.ca.