Author Contributions: Dr Tonelli 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: Pannu, Klarenbach,
Wiebe, Manns, Tonelli.
Acquisition of data: Pannu, Wiebe,
Analysis and interpretation of data: Pannu, Wiebe, Manns, Tonelli.
Drafting of the manuscript: Pannu,
Critical revision of the manuscript for important intellectual content: Pannu, Klarenbach, Manns, Tonelli.
Statistical analysis: Wiebe.
Obtained funding: Tonelli.
Administrative, technical, or material support: Pannu, Wiebe.
Study supervision: Pannu, Wiebe, Manns,
Financial Disclosures: None reported.
Funding/Support: This study was supported by the Alberta Kidney Disease Network and by the Canadian Agency for Drugs and Technology in Health. Drs Tonelli and Manns were supported by New Investigator awards from the Canadian Institutes of Health Research. Drs Tonelli and Klarenbach were supported by Population Health Investigator awards from the Alberta Heritage Foundation for Medical Research. Dr Klarenbach was supported by a Scholarship Award from the Kidney Foundation of Canada. Drs Tonelli, Manns, Pannu, and Klarenbach were supported by an alternative funding plan from the Government of Alberta, and the universities of Alberta and Calgary.
Role of the Sponsor: None of the funding organizations had any role in the design and conduct of the study;
the collection, management, analysis, and interpretation of the data;
or the preparation, review, or approval of the manuscript.
Additional Contributions: We thank Ellen Crumley, MLIS (HealthInfo & Searching Practice Inc); and Maria Ospina, MSc, Denise Adams, BSc, and Sophanny Tiv, BSc (staff and graduate students from the University of Alberta), for their assistance.
All received compensation for their work.