COHORT PROFILE Cohort Profile: The Canadian Observational Cohort collaboration

The British Columbia Centre for Excellence in HIV/AIDS, Vancouver, British Columbia, Canada, Faculty of Medicine, McGill University, Montréal, Québec, Canada, Montréal Chest Institute Immunodeficiency Service Cohort, Montréal, Québec, Canada, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada, Division of Infectious Diseases, University Health Network, Toronto, Ontario, Canada, Ontario HIV Treatment Network, Toronto, Ontario, Canada, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada, Canadian AIDS Treatment Information Exchange, Toronto, Ontario, Canada, Department of Medicine, University of Toronto, Toronto, Ontario, Canada, Maple Leaf Medical Clinic, Toronto, Ontario, Canada, Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada, Clinique Medicale L’Actuel, Montréal, Québec, Canada, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada, Centre for Research on Inner City Health, St. Michael’s Hospital, Toronto, Ontario, Canada, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada, Faculty of Health Sciences, McMaster University, Hamilton, Ontario, Canada and Faculty of Health Sciences, Simon Fraser University, Burnaby, British Columbia, Canada.