Published Online: March 3, 2014. doi:10.1001/jamainternmed.2014.29.
Study concept and design: Sexton, Collins, Foley.
Acquisition of data: Sexton, Collins, Foley.
Analysis and interpretation of data: Sexton, Reule, Solid, Foley.
Drafting of the manuscript: Sexton, Reule, Foley.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Sexton, Reule, Foley.
Obtained funding: Collins, Foley.
Study supervision: Collins, Foley.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was performed under contract HHSN267200715002C (National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland).
Role of the Sponsor: The funding source had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: Delaney Berrini, BS, and Nan Booth, MSW, MPH, ELS, both from the United States Renal Data System, assisted with manuscript preparation and manuscript editing, respectively.