Accepted for Publication: November 22, 2014.
Published Online: January 19, 2015. doi:10.1001/jamapediatrics.2014.3345.
Study concept and design: Tanski, McClure, Morgenstern, Sargent.
Acquisition, analysis, or interpretation of data: Tanski, McClure, Zhigang Li, Jackson, Zhongze Li, Sargent.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: Tanski, McClure, Jackson, Morgenstern, Sargent.
Statistical analysis: Zhigang Li, Jackson, Morgenstern, Zhongze Li.
Obtained funding: Sargent.
Administrative, technical, or material support: Tanski, Sargent.
Study supervision: Sargent.
Conflict of Interest Disclosures: None reported.
Funding/Support: This work has been funded by the National Institutes of Health (R01 grants AA015591 AA021347, and CA077026 to Dr Sargent, principal investigator; grant K02AA13938 to Dr Jackson, principal investigator; and grant K23AA021154 to Dr McClure, principal investigator).
Role of the Funder/Sponsor: The National Institutes of Health had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: We would like to acknowledge the assistance of Elaina Bergamini, MS, who managed the capture and manipulation of the advertising images in the study, and the editorial assistance of Cynthia Patch. Both persons are employed by the Geisel School of Medicine and received support from the National Institutes of Health for their activities in the study.