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Hospital percutaneous coronary intervention volume and patient mortality, 1998 to 2000

Does the evidence support current procedure volume minimums?

Andrew J. Epstein, MPP^*, Saif S. Rathore, MPH, Kevin G. M. Volpp, MD, PhD^* and Harlan M. Krumholz, MD, SM, FACC^||¶,*

^* Department of Health Care Systems, Wharton School of Business, University of Pennsylvania, Philadelphia, Pennsylvania, USA
Department of Medicine, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
VA Center for Health Equity Research and Promotion, University of Pennsylvania, Philadelphia, Pennsylvania, USA
Section of Cardiovascular Medicine, Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut, USA
^|| Section of Health Policy and Administration, Department of Epidemiology and Public Health, Yale University School of Medicine, New Haven, Connecticut, USA
^¶ Yale-New Haven Hospital Center for Outcomes Research and Evaluation, New Haven, Connecticut, USA

View larger version (9K): [in a new window]   Figure 1 Box and whisker plot of hospitals' standardized mortality ratios by percutaneous coronary intervention (PCI) volume groups. X-axis: hospital PCI volume groups (1 = low-volume, 2 = medium-volume, 3 = high-volume, 4 = very high-volume). Y-axis: standardized mortality ratio. smr = standardized mortality ratio.