Submitted for Publication: May 16, 2012; final revision received September 25, 2012; accepted October 11, 2012.
Author Contributions: Drs Garritano and Andrews had full access to all the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis. Study concept and design: Garritano and Andrews. Acquisition of data: Garritano. Analysis and interpretation of data: Garritano and Andrews. Drafting of the manuscript: Garritano and Lehman. Critical revision of the manuscript for important intellectual content: Garritano and Andrews. Statistical analysis: Garritano and Lehman. Administrative, technical, and material support: Garritano. Study supervision: Garritano and Andrews.
Conflict of Interest Disclosures: None reported.
Previous Presentation: This study was presented as a poster at the 8th International Conference on Head and Neck Cancer at the American Head & Neck Society Annual Meeting; July 21-25, 2012; Toronto, Ontario, Canada.
Additional Contributions: The Penn State Venous Thromboembolism Quality Improvement Team, Greg Swope, and the Penn State Department of Surgery provided data for use in the study. Peter W. Dillon, MD, chairman of the Department of Surgery, and Kevin J. McKenna, MD, physician co-chairman of the Venous Thromboembolism Project, helped in facilitating this project.