Accepted for Publication: July 18, 2013.
Published Online: November 18, 2013. doi:10.1001/jamapediatrics.2013.3821.
Study concept and design: All authors.
Acquisition of data: Feskanich, Frazier, Willett.
Analysis and interpretation of data: Feskanich, Frazier, Willett.
Drafting of the manuscript: Feskanich.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Feskanich, Willett.
Obtained funding: Feskanich, Frazier.
Administrative, technical, or material support: Feskanich, Frazier.
Study supervision: Bischoff-Ferrari, Frazier.
Conflict of Interest Disclosures: None reported.
Funding/Support: This research was supported by grant 5R03AG030521 from the National Institute on Aging and grants P01CA87969 and P01CA055075 from the National Cancer Institute.
Role of the Sponsor: The funding organizations had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; or preparation, review, or approval of the manuscript.