Fig. 4

Calibration curves for LR1 and LR2 predicting in-hospital all-cause mortality in the training cohort and test cohort. A Calibration curves for the LR1 model predicting in-hospital all-cause mortality in the training cohort. B Calibration curves for the LR1 model predicting in-hospital all-cause mortality in the test cohort. C Calibration curves for the LR2 model predicting in-hospital all-cause mortality in the training cohort. D Calibration curves for the LR2 model predicting in-hospital all-cause mortality in the test cohort