Key result
Hospital complication rates for coronary artery bypass surgery or angioplasty differed greatly, with only a small percentage of this difference attributable to patient risk factors.
Why the study?
Do hospitals performing coronary artery bypass surgery or angioplasty differ significantly in their risk-adjusted complication rates?
Observational
Yes
Do hospitals performing coronary artery bypass surgery or angioplasty differ significantly in their risk-adjusted complication rates?
There is significant variation in complication rates among hospitals performing CABG or angioplasty that cannot be explained by patient risk factors alone, highlighting differences in quality of care.
Answers are grounded in this paper and cite their sources.
Substantial unexplained hospital variation in CABG/angioplasty complications persists; leaves open whether process-of-care differences drive outcomes.
A hospital's quality of care is generally assessed by a review of individual records. This study used unadjusted and risk-adjusted complication rates to measure the quality of care for hospitals that perform coronary artery bypass surgery or angioplasty. Hospitals differed greatly in their complication rates. Only a small percentage of this difference was due to differences in the risks that patients faced.
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Hartz et al. (1992) conducted an observational in Coronary artery bypass surgery or angioplasty. Risk-adjusted complication rates vs. Unadjusted complication rates was evaluated on Complication rates. Hospital complication rates for coronary artery bypass surgery or angioplasty differed greatly, with only a small percentage of this difference attributable to patient risk factors.
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