Published Online: January 21, 2015. doi:10.1001/jamasurg.2014.1773.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Boudreaux-Kelly, Bokhari.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Boudreaux-Kelly.
Administrative, technical, or material support: Wilson, Bokhari.
Study supervision: Bokhari.
Conflict of Interest Disclosures: None reported.
Previous Presentation: This paper was presented at the 38th Annual Surgical Symposium of the Association of VA Surgeons; April 6, 2014; New Haven, Connecticut.