TABLE 3.

Average ROC-AUC performance comparison of the four models applied to the internal and external validation datasets.

Model	Internal validation		External validation
	Average	S.D.	AUC	S.D.
LR	0.879	0.010	0.896	0.034
SVMs	0.869	0.016	0.882	0.029
DT	0.855	0.009	0.856	0.033
NNs	0.876	0.012	0.898	0.027

AUC, area under the curve; S.D., standard deviation.