Published Online: April 1, 2013. doi:10.1001/jamainternmed.2013.3014
Author Contributions: Dr Choma 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: All authors. Acquisition of data: Choma. Analysis and interpretation of data: All authors. Drafting of the manuscript: Choma, Sponsler, and Kripalani. Critical revision of the manuscript for important intellectual content: Choma, Vasilevskis, Hathaway, and Kripalani. Statistical analysis: Choma and Hathaway. Administrative, technical, and material support: Choma and Vasilevskis. Study supervision: Choma, Vasilevskis, and Kripalani.
Conflict of Interest Disclosures: None reported.
Previous Presentation: This study was presented at the Society of General Internal Medicine Annual Meeting; May 12, 2012; Orlando, Florida.
Additional Contributions: Daniel Stover, MD, Cecelia Theobald, MD, Jennifer Green, MD, MPH, Joshua Denny, MD, MS, Neeraja Peterson, MD, MSc, John Sergent, MD, and Nancy Brown, MD, provided input about study design and review of the manuscript. Shea Polancich, RN, PhD, Martha Newton, and Hank Domenico from the Vanderbilt Center for Clinical Improvement assisted with data extraction and statistical analysis. Tracy Dozier, MD, Eitan Friedman, MD, Waleed Khalaf, MD, Jay Montgomery, MD, Matthew Semler, MD, and Ciara Shaver, MD, assisted with the development and implementation of the resident night float system at Vanderbilt University Medical Center.