Accepted for Publication: April 4, 2013.
Published Online: October 7, 2013. doi:10.1001/jamapediatrics.2013.2629.
Study concept and design: Ybarra.
Acquisition of data: Ybarra.
Analysis and interpretation of data: Ybarra, Mitchell.
Drafting of the manuscript: Ybarra.
Critical revision of the manuscript for important intellectual content: Ybarra, Mitchell.
Statistical analysis: Ybarra, Mitchell.
Obtained funding: Ybarra.
Conflict of Interest Disclosures: None reported.
Funding/Support: The survey was supported by grant R01 CE001543 from the Centers for Disease Control and Prevention.
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; or preparation, review, or approval of the manuscript.
Disclaimer: The findings and conclusions in this article are those of the authors and do not necessarily represent the official position of the Centers for Disease Control and Prevention.
Additional Contributions: We thank the entire Growing Up With Media Study team from Internet Solutions for Kids, Harris Interactive, Johns Hopkins Bloomberg School of Public Health, and the Centers for Disease Control and Prevention, who contributed to different parts of the planning and implementation of the study. We also thank the families for their time and willingness to participate in this study.
Correction: This article was corrected online October 16, 2013, for an error in Table 2 and on November 15, 2013, for an error in Funding/Support.