Accepted for Publication: March 17, 2014.
Published Online: May 19, 2014. doi:10.1001/jamainternmed.2014.1795.
Study concept and design: Bao, Tobias, Zhang.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Bao, Zhang.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Bao, Tobias, Liu.
Obtained funding: Zhang.
Administrative, technical, or material support: Zhang.
Study supervision: Zhang.
Conflict of Interest Disclosures: None reported.
Funding/Support: The study was funded by the Intramural Research Program of the Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health (contract No. HHSN275201000020C), and research grants DK58845, CA50385, P30 DK46200, and UM1 CA176726 from the National Institutes of Health. Dr Tobias was supported by a mentored fellowship from the American Diabetes Association (#7-12-MN-34).
Role of the Sponsors: The funders 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.
Previous Presentation: The abstract of this study was presented at the 26th Annual Meeting of the Society for Pediatric and Perinatal Epidemiologic Research; June 17-18, 2013; Boston, Massachusetts.
Additional Contribution: We are grateful to Frank B. Hu, MD, PhD, for his advice regarding the interpretation of the data.