Accepted for Publication: November 22, 2013.
Published Online: May 12, 2014. doi:10.1001/jamapediatrics.2013.5414.
Study concept and design: El Bcheraoui, Cooper, Kilmarx, Chen.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: El Bcheraoui.
Statistical analysis: Zhang, Rose.
Administrative, technical, or material support: All authors.
Conflict of Interest Disclosures: None reported.
Disclaimer: The findings and conclusions in this study are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.
Additional Contributions: Farid Khan, MPH, Laurel Edelman, BS, Joel Greenspan, MD, and Ed Burleigh, MBA, from SDI Health answered our inquiries about the data. Kris Greiner, BA, from the Division of Pediatric Urology, The University of Iowa, formatted the manuscript to adhere to the style of JAMA Pediatrics. Sanjyot Shinde, PhD, Deborah Gust, PhD, and Charles LeBaron, MD, from the Division of HIV/AIDS Prevention, Centers for Disease Control and Prevention, reviewed the manuscript and provided valuable comments.