Measuring Hospital Performance Using Mortality Rates: An Alternative to the RAMR
Publish Year: 1397
نوع سند: مقاله ژورنالی
زبان: English
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JR_HPM-7-4_004
تاریخ نمایه سازی: 18 مرداد 1403
Abstract:
Background The risk-adjusted mortality rate (RAMR) is used widely by healthcare agencies to evaluate hospital performance. The RAMR is insensitive to case volume and requires a confidence interval for proper interpretation, which results in a hypothesis testing framework. Unfamiliarity with hypothesis testing can lead to erroneous interpretations by the public and other stakeholders. We argue that screening, rather than hypothesis testing, is more defensible. We propose an alternative to the RAMR that is based on sound statistical methodology, easier to understand and can be used in large-scale screening with no additional data requirements. Methods We use an upper-tail probability to screen for hospitals performing poorly and a lower-tail probability to screen for hospitals performing well. Confidence intervals and hypothesis tests are not needed to compute or interpret our measures. Moreover, unlike the RAMR, our measures are sensitive to the number of cases treated. Results To demonstrate our proposed methodology, we obtained data from the New York State Department of Health for ۱۰ Inpatient Quality Indicators (IQIs) for the years ۲۰۰۹-۲۰۱۳. We find strong agreement between the upper tail probability (UTP) and the RAMR, supporting our contention that the UTP is a viable alternative to the RAMR. Conclusion We show that our method is simpler to implement than the RAMR and, with no need for a confidence interval, it is easier to interpret. Moreover, it will be available for all hospitals and all diseases/conditions regardless of patient volume
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Authors
Christine Pitocco
College of Business, Stony Brook University, Stony Brook, NY, USA
Thomas R. Sexton
College of Business, Stony Brook University, Stony Brook, NY, USA
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