Submitted for Publication: February 27, 2013; final revision received July 30, 2013; accepted August 23, 2013.
Published Online: October 10, 2013. doi:10.1001/jamaoto.2013.5097.
Study concept and design: Pollei, Hinni, Moore, Hayden, Olsen.
Acquisition of data: Pollei, Hinni, Hayden, Casler, Walter.
Analysis and interpretation of data: Pollei, Hinni, Olsen.
Drafting of the manuscript: Pollei, Hinni, Moore.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Pollei, Hinni, Moore, Walter.
Administrative, technical, or material support: Moore, Hayden, Olsen, Casler.
Study supervision: Moore.
Conflict of Interest Disclosures: None reported.
Previous Presentation: This study was presented at the American Head and Neck Society 2013 Annual Meeting; April 10, 2013; Orlando, Florida.
Additional Contributions: Yu-Hui Chang, PhD, Department of Research Biostatistics, Mayo Clinic Arizona, Phoenix, provided assistance with statistical analysis.