Author Contributions: Dr Clement had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Clement, Harris, Li, Lee, Manns.
Acquisition of data: Clement, Harris, Li, Manns.
Analysis and interpretation of data: Clement, Harris, Li, Yong, Lee, Manns.
Drafting of the manuscript: Clement, Harris, Li, Manns.
Critical revision of the manuscript for important intellectual content: Clement, Harris, Li, Yong, Lee, Manns.
Statistical analysis: Clement, Yong.
Obtained funding: Clement, Lee, Manns.
Administrative, technical, or material support: Clement, Lee.
Study supervision: Manns.
Financial Disclosures: None reported.
Funding/Support: Dr Clement is supported by a postdoctoral fellowship from the Canadian Health Services Research Foundation and the Alberta Heritage Foundation for Medical Research. Dr Manns is supported by a Canadian Institutes for Health Research New Investigator Award. This project was supported by an unrestricted grant from the Canadian Agency for Drugs and Technologies in Health.
Role of the Sponsor: The funding agencies had no role in the design and conduct of the study; in the collection, management, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.