Published Online: June 10, 2013. doi:10.1001/jamainternmed.2013.953.
Study concept and design: Winchester.
Acquisition of data: Winchester, Meral, Ryals.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Winchester, Shaw.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Winchester.
Obtained funding: Winchester.
Administrative, technical, and material support: Meral, Ryals.
Study supervision: Winchester, Beyth, Shaw.
Conflict of Interest Disclosures: None reported.
Funding/Support: This investigation was supported by NIH T35 Training Grant T35-HL007489-28. This material is based on work supported by the Department of Veterans Affairs, Veterans Health Administration.
Role of the Sponsor: The views expressed in this article are those of the authors and do not necessarily reflect the position or policy of the Department of Veterans Affairs or the United States government.
Previous Presentation: This study was presented at the American College of Cardiology Scientific Session; March 11, 2013; San Francisco, California.