1. Department of Medicine, McMaster University, Hamilton, Canada
2. Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada
3. Department of Surgery and Interdepartmental Division of Critical Care, University of Toronto, Toronto, Canada
4. Departments of Anesthesia, Pain Management and Perioperative Medicine and Critical Care Medicine, Dalhousie University, Halifax, Canada
5. Department of Critical Care, Queens University, Kingston, Canada
6. Departments of Medicine, Anesthesiology & Critical Care, Université Laval, Quebec City, Canada
7. Biostatistics Unit, St Joseph’s Healthcare Hamilton, Hamilton, Canada
8. Department of Critical Care, University of Dammam, Dammam, Saudi Arabia
9. Department of Medicine (Critical Care), University of Ottawa, Canada
10. Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa Canada
11. Intensive Care Department, King Saud Bin Abdulaziz University for Health Sciences and King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
12. Discipline of Acute Care Medicine, University of Adelaide, Adelaide, Australia
13. The George Institute for Global health and Royal North Shore Hospital, University of Sydney, Sydney, Australia
14. Department of Medicine, University of Toronto, Toronto, Ontario