1. Department of Epidemiology, Biostatistics and Occupational HealthMcGill University Montreal Quebec Canada
2. Institut national de santé publique du Québec Montreal Quebec Canada
3. Department of PediatricsSainte‐Justine University Hospital Centre, University of Montreal Montreal Quebec Canada
4. University of Montreal Hospital Research CentreMontreal Quebec Canada
5. Department of Adolescent Medicine – Eating DisordersSainte‐Justine University Hospital Centre, University of Montreal, Montreal Quebec Canada
6. School of Public HealthUniversity of Montreal Montreal Quebec Canada