1. Epidemiology and Biostatistics Unit, Centre Armand‐Frappier Santé Biotechnologie Institut National de la Recherche Scientifique (INRS), Université du Québec Laval QC Canada
2. Respiratory Epidemiology and Clinical Research Unit Research Institute of the McGill University Health Centre Montreal QC Canada
3. Department of Epidemiology, Biostatistics and Occupational Health, Faculty of Medicine McGill University Montreal QC Canada