Accepted for Publication: July 26, 2013.
Published Online: November 25, 2013. doi:10.1001/jamainternmed.2013.11564.
Study concept and design: Ottenberg, Swetz, Mueller.
Acquisition of data: Webster, Swetz, Mueller.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Buchhalter, Swetz, Mueller.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Buchhalter, Mueller.
Obtained funding: Mueller.
Administrative, technical, or material support: Ottenberg, Swetz, Mueller.
Study supervision: Swetz, Mueller.
Conflict of Interest Disclosures: Dr Hayes has been an advisor for St Jude Medical and Medtronic; has been a speaker at educational venues for St Jude Medical, Boston Scientific, Sorin Medical, Biotronik, and Medtronic; and has been a member of steering committees for St Jude Medical and Medtronic. Dr Mueller is a member of the Boston Scientific Safety Advisory Board and is an associate editor for NEJM Journal Watch General Medicine. No other disclosures were reported.
Funding/Support: This study was supported by Clinical and Translational Science Award grant No. UL1 TR000135 from the National Center for Advancing Translational Science.
Role of the Sponsors: The funding source had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Disclaimer: The contents of this article are solely the responsibility of the authors and do not necessarily represent the official views of the National Institutes of Health.
Previous Presentations: Portions of data from this study were presented as posters at the Annual Meeting of the Heart Rhythm Society; May 13, 2010; Denver, Colorado; and at the Annual Scientific Meeting of the Heart Failure Society of America; September 20, 2011; Boston, Massachusetts.