Accepted for Publication: December 15, 2012.
Published Online: March 20, 2013. doi:10.1001/jamasurg.2013.134.
Study concept and design: Hawn, Vick, Henderson, and Itani.
Acquisition of data: Vick, Deierhoi, Graham, and Henderson.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Hawn, Richman, Vick, and Deierhoi.
Critical revision of the manuscript for important intellectual content: Hawn, Richman, Vick, Graham, Henderson, and Itani.
Statistical analysis: Richman, Vick, Deierhoi, Graham, and Henderson.
Obtained funding: Hawn and Vick.
Administrative, technical, and material support: Vick, Deierhoi, Graham, and Itani.
Conflict of Interest Disclosures: Drs Hawn, Richman, and Itani and Mss Vick and Deierhoi are VA employees. Dr Itani has received research support from Merck, Cubist, and Trius Therapeutics and has been a consultant to Forest Pharmaceuticals.
Funding/Support: This study is funded by grant PPO 10-296 from the VA Health Services Research and Development Service. Dr Richman is supported by a Career Development Award from the VA Health Services Research and Development Service.
Role of the Sponsors: The VA Office of Research and Development had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; or preparation or review of the manuscript. The VA National Surgery Office and Office of Information and Analytics approved the manuscript for adherence to the data use agreements.
Disclaimer: The opinions expressed are those of the authors and not necessarily those of the Department of Veterans Affairs or the US government.
Additional Contributions: The VA Surgical Quality Data Use Group acted as scientific advisors and provided critical review of data use and analysis presented in this article.