Table 4.

C-index for 1 year or more mortality

No	Model	Training cohort		Validation cohort
		Number of models	C-index (95% CI)	Number of models	C-index (95% CI)
1	LR	23	0.8266 [0.8070; 0.8466]	11	0.8110 [0.7974; 0.8249]
2	RF	7	0.8623 [0.8284; 0.8975]	8	0.8127 [0.7898; 0.8362]
3	ANN	5	0.8172 [0.7804; 0.8557]	6	0.8454 [0.7989; 0.8946]
4	DT	8	0.8281 [0.7865; 0.8719]	3	0.7868 [0.7383; 0.8384]
5	SVM	7	0.8195 [0.7814; 0.8594]	6	0.7972 [0.7491; 0.8484]
6	XGBoost	3	0.8619 [0.8051; 0.9226]	2	0.8075 [0.7776; 0.8385]
7	NB	2	0.8930 [0.8621; 0.9249]
8	AdaBoost	1	0.9100 [0.9001; 0.9201]	3	0.8905 [0.8248; 0.9615]
9	KNN	1	0.7840 [0.7498; 0.8198]
10	Other	1	0.9240 [0.9190; 0.9290]	2	0.8869 [0.8581; 0.9166]
11	Overall	58	0.8352 [0.8214; 0.8493]	41	0.8197 [0.8042; 0.8354]