Accepted for Publication: March 18, 2015.
Published Online: May 4, 2015. doi:10.1001/jamapediatrics.2015.0781.
Study concept and design: Sanchez-Vaznaugh, Sánchez.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Sanchez-Vaznaugh, Sánchez.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Sánchez.
Obtained funding: Sanchez-Vaznaugh, Sánchez.
Administrative, technical, or material support: Crawford.
Conflict of Interest Disclosures: None reported.
Funding/Support: Dr Sanchez-Vaznaugh received salary support from grant K01HL115471 from the National Institutes of Health and Dr Sánchez received salary support from grant 1-P01-ES-022844-01 from the National Institutes of Health, grant 69599 from the Robert Wood Johnson Foundation, and grant 83543601 from the Environmental Protection Agency.
Role of the Funder/Sponsor: 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.
Disclaimer: The content in this article is solely the responsibility of the authors and does not necessarily represent the official views of the funding institutions.
Additional Contributions: We thank Fumika Matsubara, MPH, and Sahana Vasanth, MPHc (San Francisco State University), for research assistance and Sarah Abraham, BS (University of Michigan), for assistance with statistical analyses. Ms Matsubara and Ms Vasanth received compensation from the National Institutes of Health. Ms Abrams conducted initial statistical analyses as part of her academic studies; she did not receive compensation from a funding sponsor.