About the Authors

Shanil Ebrahim

shanil.ebrahim@utoronto.ca

Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

Luis Montoya

Affiliation Department of Dentistry, Santo Tomas University, Bogota D.C., Colombia

Wanda Truong

Affiliation McMaster Integrative Neuroscience Discovery & Study program, McMaster University, Hamilton, Canada

Sandy Hsu

Affiliation Department of Oncology, McMaster University, Hamilton, Canada

Mostafa Kamal el Din

Affiliation Ain Shams University, Faculty of Medicine, Cairo, Egypt

Alonso Carrasco-Labra

Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada, Evidence-Based Dentistry Unit, Faculty of Dentistry, University of Chile, Santiago, Chile

Jason W. Busse

Affiliation Department of Anesthesia, McMaster University, Hamilton, Canada

Stephen D. Walter

Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada, Department of Mathematics and Statistics, McMaster University, Hamilton, Canada

Diane Heels-Ansdell

Affiliation Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada

Rachel Couban

Affiliation Department of Anesthesia, McMaster University, Hamilton, Canada

Irene Patelis-Siotis

Affiliations Psychiatry & Behavioural Neurosciences, McMaster University, Hamilton, Canada, Mood Disorders program, St. Joseph's Healthcare, Hamilton, Canada

Marg Bellman

Affiliation National Disability Services, Policy & Procedure department, Sun Life Financial, Toronto, Canada

L. Esther de Graaf

Affiliation Department of Medical Psychology and Psychotherapy, Erasmus MC University Medical Center, Rotterdam, The Netherlands

David J. A. Dozois

Affiliation Department of Psychology, University of Western Ontario, London, Canada

Peter J. Bieling

Affiliation Psychiatry & Behavioural Neurosciences, McMaster University, Hamilton, Canada

Gordon H. Guyatt

Affiliations Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada, Department of Medicine, McMaster University, Hamilton, Canada

Competing Interests

The authors have read the journal's policy and have the following conflicts. Sun Life was supporting the MITACS scholarship for Shanil Ebrahim, and did not have a role in the study design, data collection and analysis, or preparation of the manuscript. Jason W. Busse acts as a consultant to Prisma Health Canada, a private incorporated company funded by employers and insurers that consults on and manages long-term disability claims. Marg Bellman is the assistant vice-president of the National Disability Services, Policy & Procedure department at Sun Life Financial. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials. All other authors have no affiliations with or involvement in any organization or entity with a direct interest of any kind in the subject matter or materials discussed in the manuscript. No financial support has been received for the creation of this manuscript.

Author Contributions

Conceived and designed the experiments: SE JWB SDW GHG. Performed the experiments: SE LM SH MK WT AC-L RC. Analyzed the data: SE JWB SDW DH-A GHG. Contributed reagents/materials/analysis tools: LED DD PB. Wrote the paper: SE. Knowledge users and reviewed the manuscript: IP-S MB.