Accepted for Publication: July 31, 2013.
Published Online: December 9, 2013. doi:10.1001/jamainternmed.2013.12956.
Study concept and design: Huang, John, Moffet, Karter.
Acquisition of data: Liu, John, Moffet, Karter.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Huang, John.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Liu, Karter.
Obtained funding: Huang, Moffet, Karter.
Administrative, technical, and material support: John, Moffet.
Study supervision: Moffet, Karter.
Conflict of Interest Disclosures: None reported.
Funding/Support: This research was funded by the National Institute of Diabetes and Digestive and Kidney Diseases grants R01 DK081796 (Dr Huang, Ms Liu, Ms John, Mr Moffet, and Dr Karter), R01 DK65664 (Ms Liu, Mr Moffet, and Dr Karter), K23DK097283 (Dr Laiteerapong), P30 DK092949 (Drs Huang and Laiteerapong and Ms John), P30 DK092924 (Ms Liu, Mr Moffet, and Dr Karter), and a University of Chicago John A. Hartford Centers of Excellence Award (Dr Laiteerapong).
Role of the Sponsor: The National Institute of Diabetes and Digestive and Kidney Diseases had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.