Table 2.

Summary of training, validation, and testing datasets.

Data source	Group	Training	Testing	Total
WKUH	Survival	3722	413	4135
	Mortality	159	18	177
JNUH	Survival	8827	981	9808
	Mortality	394	44	438
WSCH	Survival	12,278	1364	13,642
	Mortality	328	36	364
GUGH	Survival	8017	891	8908
	Mortality	261	29	290
Total	Survival	32,844	3649	36,493
	Mortality	1142	127	1269
	Total	33,986	3776	37,762