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Study of NY Hospitals Finds Risk-Adjusted Mortality Rate Poorly Associated with Future Mortality

Multiple states publicly report a hospital’s risk-adjusted mortality rate for percutaneous coronary intervention (PCI) as a quality measure. However, whether reported annual PCI mortality is associated with a hospital’s future performance is unclear. A study published in JAMA Cardiology sought to evaluate the association between reported risk-adjusted hospital PCI-related mortality and a hospital’s future PCI-related mortality. The study used data from the New York Percutaneous Intervention Reporting System from January 1, 1998, to December 31, 2016, to assess hospitals that perform PCI. The study included 67 New York hospitals and 960 hospital-years. The study found that at hospitals with high or low PCI-related mortality rates, the rates largely regressed to the mean the following year. A hospital’s risk-adjusted mortality rate was poorly associated with its future mortality. The annual hospital PCI-related mortality may not be a reliable factor associated with hospital quality to consider in a practice change or when helping patients select high-quality hospitals.

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