Accepted for Publication: January 24, 2011.
Published Online: March 21, 2011. doi:10.1001/archsurg.2011.60
Author Contributions: Dr Carr had full access to all of the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Carr, Reilly, Schwab, and Branas. Acquisition of data: Carr, Branas, and Geiger. Analysis and interpretation of data: Carr, Reilly, Branas, and Wiebe. Drafting of the manuscript: Carr, Branas, Geiger, and Wiebe. Critical revision of the manuscript for important intellectual content: Carr, Reilly, Schwab, Branas, Geiger, and Wiebe. Statistical analysis: Carr, Branas, and Wiebe. Administrative, technical, and material support: Carr, Reilly, Schwab, and Geiger. Study supervision: Carr, Reilly, and Branas.
Financial Disclosure: None reported.
Funding/Support: Dr Carr is supported by career development award K08HS017960 from the Agency for Healthcare Research and Quality.
Role of the Sponsor: The funder had no role in the design, analysis, or interpretation of the study.
Disclaimer: These data were provided by the Pennsylvania Trauma Systems Foundation, Mechanicsburg. The Foundation specifically disclaims responsibility for any analyses, interpretations, or conclusions.
Previous Presentation: This paper was presented at the 2010 Annual Conference of the Agency for Healthcare Research and Quality; September 27, 2010; Bethesda, Maryland.
Additional Contributions: Peter Jenkins, MD, University of Pennsylvania, helped with data acquisition and institutional board approval and Nathan McWilliams, MPA, Pennsylvania Trauma Systems Foundation, helped with data acquisition and preparation.