Author Contributions: Dr Hemmelgarn 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: Hemmelgarn, Zhang, Manns, Ravani, Klarenbach, Culleton, Thorlacius, Tonelli.
Acquisition of data: Hemmelgarn, James, Krause, Thorlacius.
Analysis and interpretation of data: Hemmelgarn, Zhang, Manns, James, Quinn, Ravani, Klarenbach, Culleton, Krause, Jain, Tonelli.
Drafting of the manuscript: Hemmelgarn, Zhang
Critical revision of the manuscript for important intellectual content: Hemmelgarn, Zhang, Manns, James, Quinn, Ravani, Klarenbach, Krause, Thorlacius, Jain, Tonelli.
Statistical analysis: Hemmelgarn, Zhang, James, Ravani, Jain.
Obtained funding: Hemmelgarn, Zhang, Manns, Culleton.
Administrative, technical, or material support: Hemmelgarn, Zhang, James, Krause, Thorlacius.
Study supervision: Hemmelgarn.
Financial Disclosures: None reported.
Funding/Support: This study was funded by the Alberta Heritage Foundation for Medical Research (AHFMR) Interdisciplinary Team Grants Program and by the Kidney Foundation of Canada. Drs Hemmelgarn, Manns, and Tonelli were supported by awards from the Canadian Institutes of Health Research. Drs Hemmelgarn, Klarenbach, and Tonelli were supported by awards from the AHFMR. Dr James was supported by a KRESCENT and AHFMR Fellowship.
Role of the Sponsor: The funding organizations had no role in the design and conduct of the study; in the collection, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript.
A list of the Alberta Kidney Disease Network members appears at http://www.akdn.info.