Published Online: May 3, 2013. doi:10.1001/jamapediatrics.2013.1042
Study concept and design: Goyal, Hersh, Localio, Trent, and Zaoutis.
Acquisition of data: Goyal and Luan.
Analysis and interpretation of data: Goyal, Hersh, Luan, Localio, Trent, and Zaoutis.
Drafting of the manuscript: Goyal, Luan, Localio, and Trent.
Critical revision of the manuscript for important intellectual content: Hersh, Luan, Localio, Trent, and Zaoutis.
Statistical analysis: Goyal, Luan, and Localio.
Obtained funding: Goyal.
Study supervision: Localio and Zaoutis.
Conflict of Interest Disclosures: None reported.
Funding/Support: We thank the Children’s Hospital of Philadelphia Department of Pediatrics (Dr Goyal) and the National Institutes of Health (grant K23 HD070910-01A1 [Dr Goyal]) for providing funding to support this research.
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; and preparation, review, or approval of the manuscript.