Accepted for Publication: January 24, 2012.
Author Contributions: Study concept and design: Matlock, Peterson, Reynolds, Varosy, and Masoudi. Acquisition of data: Matlock. Analysis and interpretation of data:Matlock, Wang, Curtis, Reynolds, Varosy, and Masoudi. Drafting of the manuscript: Matlock, Peterson, and Masoudi. Critical revision of the manuscript for important intellectual content: Matlock, Wang, Curtis, Reynolds, Varosy, and Masoudi. Statistical analysis: Matlock, Wang, and Varosy. Administrative, technical, and material support: Curtis and Varosy. Study supervision: Reynolds and Varosy.
Financial Disclosure: Dr Curtis has received salary support under contract with the American College of Cardiology (ACC) to provide data analytic services for the ICD registry and has significant stock holdings (in Medtronic, a maker of ICDs. Dr Reynolds has received consulting fees from Medtronic. Dr Masoudi has had contracts with and has received grants from the ACC Foundation and the Oklahoma Foundation for Medical Quality; and has received grants from the Agency for Healthcare Research and Quality the National Heart, Lung, and Blood Institute, and the Heart Rhythm Society.
Funding/Support: Dr Matlock was supported as a Hartford Geriatrics Health Outcomes Research Scholar and by K23 funding (AG040696-01) from the National Institute on Aging.
Funding for Less Is More: Staff support for topics research funded by grants from the California Health Care Foundation and the Parsemus Foundation.
Disclaimer: The views expressed in this manuscript represent those of the authors and do not necessarily represent the official views of the NCDR or its associated professional societies identified at www.ncdr.com, or the Department of Veterans Affairs.
Additional Information: The ICD Registry is an initiative of the ACC Foundation and the Heart Rhythm Society.
Previous Presentation: This study was presented at the 2010 American Heart Association Quality of Care and Outcomes Research Conference; May 20, 2010; Washington, DC.