Submitted for Publication: July 13, 2012; final revision received September 27, 2012; accepted October 15, 2012.
Author Contributions: All authors had full access to all 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: Taylor, Clayburgh, Rosenbaum, and Schindler. Acquisition of data: Taylor, Clayburgh, Rosenbaum, and Schindler. Analysis and interpretation of data: Taylor, Clayburgh, Rosenbaum, and Schindler. Drafting of the manuscript: Taylor and Clayburgh. Critical revision of the manuscript for important intellectual content: Clayburgh, Rosenbaum, and Schindler. Statistical analysis: Taylor and Clayburgh. Study supervision: Rosenbaum and Schindler.
Conflict of Interest Disclosures: Dr Rosenbaum is a paid consultant for Genentech.
Funding/Support: Research by Dr Rosenbaum is, in part, funded by Research to Prevent Blindness (New York), Genentech, the Stan and Madelle Rosenfeld Family Trust, the William and Mary Bauman Foundation, and the William C. Kuzell Foundation.
Previous Presentation: This study was presented at the Annual American Broncho-Esophagological Association Meeting; April 19, 2012; San Diego, California.
Additional Contributions: Jess Mace, MPH, provided assistance with the statistical analysis.