Accepted for Publication: January 21, 2015.
Published Online: April 20, 2015. doi:10.1001/jamapediatrics.2015.0182.
Study concept and design: Taveras, Marshall, Kleinman, Hacker, Price, Sharifi, Simon.
Acquisition, analysis, or interpretation of data: Marshall, Kleinman, Gillman, Horan, Smith, Rifas-Shiman, Simon.
Drafting of the manuscript: Taveras, Smith, Price.
Critical revision of the manuscript for important intellectual content: Marshall, Kleinman, Gillman, Hacker, Horan, Smith, Sharifi, Rifas-Shiman, Simon.
Statistical analysis: Kleinman, Rifas-Shiman.
Obtained funding: Taveras.
Administrative, technical, or material support: Marshall, Horan, Smith, Price, Sharifi.
Study supervision: Taveras, Gillman.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by award R18 AE000026 from the American Recovery and Reinvestment Act (Dr Taveras).
Role of the Funder/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.