Submitted for Publication: July 13, 2012; final revision received November 6, 2012; accepted November 23, 2012.
Published Online: February 21, 2013. doi:10.1001/jamaoto.2013.1744
Author Contributions: Mr Gaylor and Drs Raman, Chung, Lee, and Lau 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: Gaylor, Raman, Chung, Lee, and Lau. Acquisition of data: Gaylor, Raman, Chung, and Rao. Analysis and interpretation of data: Gaylor, Raman, Chung, and Poe. Drafting of the manuscript: Gaylor, Raman, and Lee. Critical revision of the manuscript for important intellectual content: Gaylor, Raman, Chung, Rao, Lau, and Poe. Statistical analysis: Raman. Obtained funding: Lau. Administrative, technical, and material support: Gaylor, Rao, Lau, and Poe. Study supervision: Lau.
Conflict of Interest Disclosures: None reported.
Role of the Sponsors: The original report on which this manuscript is based was under contract to the AHRQ (contract 290 2007 10055 1). The Centers for Medicare & Medicaid Services and AHRQ helped formulate the initial study questions but did not participate in the literature search, determination of study eligibility criteria, data analysis or interpretation, or preparation or review of this manuscript for publication.
Disclaimer: The authors of this report are responsible for its content. Statements in the report should not be constituted as endorsement by AHRQ or the US Department of Health and Human Services.
Additional Contributions: Issa Dahabreh, MD, MS, provided statistical advice and Jenny Lamont, MS, provided editing advice during manuscript preparation. Srila Sen, MA, provided editing advice and Marilyn Neault, PhD, CCC-A, provided technical advice during report preparation.