Study concept and design: Kaul, Federspiel, Dai, Steams, Yeung, Stouffer.
Acquisition, analysis, or interpretation of data: Kaul, Federspiel, Smith, Yeung, Beyhaghi, Zhou, Stouffer.
Drafting of the manuscript: Kaul, Federspiel, Beyhaghi, Zhou, Stouffer.
Critical revision of the manuscript for important intellectual content: Kaul, Federspiel, Dai, Steams, Smith, Yeung, Stouffer.
Statistical analysis: Kaul, Federspiel, Steams.
Obtained funding: Federspiel, Stouffer.
Administrative, technical, or material support: Kaul, Beyhaghi, Zhou.
Study supervision: Kaul, Yeung, Stouffer.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: Data acquisition and Dr Federspiel’s effort were supported by grants F30-HL110483 from the National Heart, Lung, and Blood Institute and T32-GM008719 from the National Institute of General Medical Sciences. The CA-SID is a product of the Healthcare Cost and Utilization Project, Agency for Healthcare Research and Quality, in partnership with the California Office of Statewide Health Planning and Development.
Role of the Funders/Sponsors: The funding organizations 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.
Previous Presentation: This study was presented in abstract form at the American Heart Association Scientific Sessions 2013; November 17, 2013; Dallas, Texas.
Correction: This article was corrected online on April 3, 2015, for revisions to Table 1.