About the Authors

Vivian Welch

Vivian.welch@uottawa.ca

Affiliations Clinical Epidemiology Unit, Ottawa Hospital Research Institute, Ottawa Hospital, Ottawa, Ontario, Canada, Centre for Global Health, Institute of Population Health, University of Ottawa, Ottawa, Ontario, Canada

Mark Petticrew

Affiliation London School of Hygiene and Tropical Medicine, London, United Kingdom

Erin Ueffing

Affiliation Campbell and Cochrane Equity Methods Group, Centre for Global Health, Institute of Population Health, University of Ottawa, Ottawa, Ontario, Canada

Maria Benkhalti Jandu

Affiliation Centre for Global Health, Institute of Population Health, University of Ottawa, Ottawa, Ontario, Canada

Kevin Brand

Affiliation Telfer School of Management, University of Ottawa, Ottawa, Ontario, Canada

Bharbhoor Dhaliwal

Affiliation Centre for Global Health, Institute of Population Health, University of Ottawa, Ottawa, Ontario, Canada

Elizabeth Kristjansson

Affiliation School of Psychology, University of Ottawa, Ottawa, Ontario, Canada

Janet Smylie

Affiliations Centre for Research on Inner City Health, Keenan Research Centre of the Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada

George Anthony Wells

Affiliations Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada, University of Ottawa Heart Institute, Ottawa, Ontario, Canada

Peter Tugwell

Affiliations Clinical Epidemiology Unit, Ottawa Hospital Research Institute, Ottawa Hospital, Ottawa, Ontario, Canada, Centre for Global Health, Institute of Population Health, University of Ottawa, Ottawa, Ontario, Canada, Department of Medicine, University of Ottawa, Ottawa, Ontario, Canada

Competing Interests

The authors have read the journal's policy and have the following conflicts: MP and PT are co-convenors of the Campbell and Cochrane Equity Methods Group; EU is a salaried employee of the Campbell and Cochrane Equity Methods Group. No other authors have relationships with companies that might have an interest in the submitted work in the previous three years; their spouses, partners, or children have no financial relationships that may be relevant to the submitted work; and no authors have non-financial interests that may be relevant to the submitted work. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: VW PT MP EK JS KB GW. Performed the experiments: VW EU BD MBJ. Analyzed the data: VW EU BD MBJ. Wrote the paper: VW MP EK JS KB GW EU BD MBJ.