Published Online: December 30, 2013. doi:10.1001/jamapediatrics.2013.4338.
Study concept and design: Alexander, Fortenberry, Bravender, Østbye, Tulsky, Dolor, Shields.
Acquisition of data: Alexander, Pollak, Østbye.
Analysis and interpretation of data: Alexander, Fortenberry, Pollak, Bravender, Davis, Østbye, Tulsky, Shields.
Drafting of the manuscript: Alexander, Fortenberry, Shields.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Alexander, Shields.
Obtained funding: Alexander, Pollak, Bravender, Østbye.
Administrative, technical, or material support: Alexander, Fortenberry, Bravender.
Study supervision: Alexander, Østbye, Tulsky.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work was supported by grant R01HL092403 from the National Heart, Lung, and Blood Institute.
Role of the Sponsor: The funding organization 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.
Additional Contributions: Sidney Graves, BA, and Alexis Irons, BA, assisted with data collection. We thank all the adolescents, parents, and physicians who allowed us to record their annual visits.