Author Contributions: Dr Chhatriwalla and Mr Kennedy had full access to all of the data in the study and take responsibility for the integrity of the data and the accuracy of the data analysis.
Study concept and design: Chhatriwalla, Amin, House, Marso.
Acquisition of data: Chhatriwalla, House, Marso.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: Chhatriwalla, Kennedy, Marso.
Critical revision of the manuscript for important intellectual content: Chhatriwalla, Amin, House, Cohen, Rao, Messenger, Marso.
Statistical analysis: Chhatriwalla, Kennedy, House, Marso.
Administrative, technical, or material support: Chhatriwalla, Messenger, Marso.
Study supervision: Chhatriwalla.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Chhatriwalla reports that he will be receiving speaking honoraria from Edwards Lifesciences to be paid directly to Saint Luke's Hospital Foundation of Kansas City. Mr House reports receiving consulting honoraria from Vita Solutions and KU Medical Center. Dr Cohen reports medical board membership for Medtronic and Abbott Vascular and reports receiving research support from Medtronic, Edwards Lifesciences, Abbott Vascular, Boston Scientific, Eli Lilly, AstraZeneca, Biomet Inc, and Daiichii Sankyo; consultant honoraria from AstraZeneca, Eli Lilly, Merck, and Janssen Pharmaceuticals; and speaking honoraria from St Jude Medical and Eli Lilly. Dr Rao reports receiving research support and consultant honoraria from The Medicines Company. Dr Marso reports that all compensation for research activities, including research grants and consulting fees from The Medicines Company, Novo Nordisk, Abbott Vascular, Amylin Pharmaceuticals, Boston Scientific, Volcano Corporation, and Terumo Medical, was paid directly to the Saint Luke's Hospital Foundation of Kansas City. No other disclosures were reported.
Funding/Support: This research was supported by the American College of Cardiology Foundation's National Cardiovascular Data Registry (NCDR).
Role of the Sponsor: This was an investigator-initiated study. The analytic work was performed at the Saint Luke's Mid America Heart Institute, an NCDR analytic center. There was no other additional financial or material support and no institutional role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; or preparation, review, or approval of the manuscript.
Disclaimer:The views expressed in this article represent those of the authors and do not necessarily represent the American College of Cardiology Foundation or Society for Cardiac Angiography and Interventions, which cosponsor the NCDR.
Additional Contributions: We thank Jose Aceituno, MS, for preparation of graphics and Joseph Murphy, MBA, for editorial assistance and publication coordination. Both are employees of Saint Luke's Hospital of Kansas City, Missouri. Neither received any additional compensation beyond usual salary.
This article was corrected for errors on July 1, 2013.