Accepted for Publication: June 28, 2014.
Published Online: September 29, 2014. doi:10.1001/jamainternmed.2014.4194.
Study concept and design: All authors.
Acquisition, analysis, or interpretation of data: Reynolds, Rising, Coukell, Paulson.
Drafting of the manuscript: Reynolds, Rising, Coukell, Redberg.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Reynolds.
Administrative, technical, or material support: Reynolds, Paulson.
Study supervision: Reynolds, Rising, Coukell, Redberg.
Conflict of Interest Disclosures: Mr Coukell reports being the vice chair of the Medical Device Innovation Consortium Board of Directors and serving on the Reagan-Udall Foundation Board of Directors. Dr Redberg reports being a member of the US Food and Drug Administration Cardiovascular Devices Expert Panel. No other disclosures were reported.
Disclaimer: Dr Redberg, editor of JAMA Internal Medicine, had no role in the review or editorial decision process for this article. She was not compensated.
Additional Contributions: Naomi Herz, MSc, contributed data review and analysis.