Submitted for Publication: November 11, 2013; final revision received January 30, 2014; accepted February 26, 2014.
Published Online: April 17, 2014. doi:10.1001/jamaoto.2014.411.
Study concept and design: All authors.
Acquisition, analysis, and interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: All authors.
Obtained funding: Chang.
Administrative, technical, or material support: Chang.
Study supervision: Chang.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by National Institutes of Health Clinical and Translational Science Award UL1 RR025744 and by funding from the Department of Otolaryngology–Head and Neck Surgery, Stanford University School of Medicine, Stanford, California (Dr Chang).
Role of the Sponsor: The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Previous Presentation: This study was presented at the American Society of Pediatric Otolaryngology 28th Annual Meeting; April 26, 2013; Arlington, Virginia.
Additional Contributions: Gomathi Krishnan, PhD, Stanford University, assisted with data retrieval from STRIDE. Michael McCandless, PhD, consulting Python programmer, assisted with developing the Python code for formatting the data set.