Accepted for Publication: December 3, 2013.
Published Online: March 10, 2014. doi:10.1001/jamainternmed.2014.136.
Study concept and design: Shehab, Budnitz.
Acquisition, analysis, or interpretation of data: Geller, Shehab, Lovegrove, Kegler, Weidenbach, Ryan.
Drafting of the manuscript: Geller, Shehab, Weidenbach.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Geller, Shehab, Kegler.
Obtained funding: Budnitz.
Administrative, technical, or material support: Geller, Shehab, Lovegrove, Weidenbach, Budnitz.
Study supervision: Shehab, Budnitz.
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: Kathleen Rose, BSN, of Emergint Technologies (contractor to the Centers for Disease Control and Prevention), Lee M. Hampton, MD, MSc, of the Centers for Disease Control and Prevention, and Cathy Irish, BS, and Joel Friedman, BA, from the US Consumer Product Safety Commission assisted with data acquisition. None of them received compensation for their contributions.