Can we trust the standardized mortality ratio? A formal analysis and evaluation based on axiomatic requirements.

BackgroundThe standardized mortality ratio (SMR) is often used to assess and compare hospital performance.While it has been recognized that hospitals may differ in their SMRs due to differences Amphibian Habitats in patient composition, there is a lack of rigorous analysis of this and other-largely unrecognized-properties of the SMR.MethodsThis pap

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