Accepted for Publication: December 15, 2015.
Published Online: March 9, 2016. doi:10.1001/jamacardio.2015.0345.
Study concept and design: Dodson, Gagnon, Tinetti, Krumholz, Gaziano.
Acquisition, analysis, or interpretation of data: Dodson, Petrone, Gagnon, Gaziano.
Drafting of the manuscript: Dodson, Tinetti, Gaziano.
Critical revision of the manuscript for important intellectual content: Petrone, Gagnon, Krumholz.
Statistical analysis: Gagnon, Petrone.
Obtained funding: Dodson, Gaziano.
Administrative, technical, or material support: Gagnon, Gaziano.
Study supervision: Dodson, Gagnon, Tinetti, Krumholz, Gaziano.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Krumholz reported being a recipient of research agreements from Medtronic and from Johnson & Johnson (through Yale University) to develop methods of clinical trial data sharing and reported being chair of a cardiac scientific advisory board for UnitedHealthcare. No other disclosures were reported.
Funding/Support: This project was supported by grant R03AG045067 (Dr Dodson) from the National Institutes of Health/National Institute on Aging and by a T. Franklin Williams Scholarship Award (funding provided by Atlantic Philanthropies, The John A. Hartford Foundation, the Alliance for Academic Internal Medicine–Association of Specialty Professors, and the American College of Cardiology). Dr Krumholz is supported by grant U01 HL105270-05 (Center for Cardiovascular Outcomes Research at Yale University) from the National Heart, Lung, and Blood Institute. Support for US Department of Veterans Affairs/Centers for Medicare & Medicaid Services data is provided by the Department of Veterans Affairs, Veterans Health Administration, Office of Research and Development, Health Services Research and Development, Veterans Affairs Information Resource Center (project numbers SDR 02-237 and 98-004).
Role of the Funder/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; or decision to submit the manuscript for publication.