Accepted for Publication: April 11, 2013.
Published Online: October 14, 2013. doi:10.1001/jamapediatrics.2013.2636.
Study concept and design: All authors.
Acquisition of data: Winterstein, Kubilis, Hampp.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Winterstein, Knox, Kubilis.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Winterstein, Knox, Kubilis.
Obtained funding: Winterstein.
Study supervision: Winterstein.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported in part by a grant from the Florida Agency of Healthcare Administration and was conducted in collaboration with the Florida Center for Medicaid and the Uninsured, University of Florida. Ms Knox was supported by an American Foundation for Pharmaceutical Education fellowship and the Mary K. Owens Fellowship for Healthcare Innovation from the University of Florida.
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. The Florida Agency of Healthcare Administration reviewed the manuscript prior to submission but made no suggestions for revisions.
Disclaimer: This article reflects the views of the authors and should not be construed to represent the views or policies of the US Food and Drug Administration.
Additional Contributions: We thank the Public Health Statistics, Office of Vital Statistics, Florida Department of Health and the Texas Department of State Health Services for provision of birth certificate data.