American Society of Anesthesiologists

Fig. 9.

Risk Stratification Index in-hospital mortality calibration. In-hospital correlated with observed outcomes with an R2 of 0.999 across 806 probability bins each of width 0.001. The data are from a Medicare Analysis and Provider Review data set years 2007 to 2014. Ninety percent of patients fall between predicted mortality of 0 and 13%, and 99% fall between 0 and 61%.

Risk Stratification Index in-hospital mortality calibration. In-hospital correlated with observed outcomes with an R² of 0.999 across 806 probability bins each of width 0.001. The data are from a Medicare Analysis and Provider Review data set years 2007 to 2014. Ninety percent of patients fall between predicted mortality of 0 and 13%, and 99% fall between 0 and 61%.

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