Submitted for Publication: March 31, 2014; final revision received June 9, 2014; accepted August 29, 2014.
Published Online: October 16, 2014. doi:10.1001/jamaoto.2014.2430.
Study concept and design: Martinez Del Pero, Jayne, Sivasothy, Jani.
Acquisition, analysis, or interpretation of data: Martinez Del Pero, Chaudhry, Sivasothy, Jani.
Drafting of the manuscript: Martinez Del Pero, Jayne, Sivasothy.
Critical revision of the manuscript for important intellectual content: Chaudhry, Sivasothy, Jani.
Statistical analysis: Martinez Del Pero, Jayne, Chaudhry, Sivasothy.
Administrative, technical, or material support: Sivasothy, Jani.
Study supervision: Chaudhry, Sivasothy, Jani.
Conflict of Interest Disclosures: None reported.
Funding/Support: This project was supported by the Cambridge Biomedical Research Centre.
Role of the Sponsor: The Cambridge Biomedical Research Centre 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: Data reported herein were presented as an oral presentation at the Laryngology and Rhinology Free Paper Session of the Royal Society of Medicine; February 1, 2013; London, England.