Fig. 10.
Risk Stratification Index length-of-stay calibration. Length-of-stay correlated with observed outcomes with an R2 of 1.000 across 983 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 the patients fall between predicted mortality of 0 and 91%, and 99% fall between 0 and 99%.