Table 2. Calibration metrics of the logistic regression and machine learning models for 90-day and 1-year mortality in the testing cohorts.

90-Day Mortality	Logistic Regression	Machine Learning
Observed-to-Expected Ratio	0.950	0.966
Calibration-in-the-Large	-0.067	-0.043
Slope of Calibration Curve	0.846	1.288
1-Year Mortality	Logistic Regression	Machine Learning
Observed-to-Expected Ratio	1.065	1.074
Calibration-in-the-Large	0.091	0.101
Slope of Calibration Curve	0.930	1.248