Table 4. Comparison Criteria for Both Models on Testing Set ^a.

Comparison Criteria	Artificial Neural Network	Cox Proportional Hazards
AUC (Stand. Error)	0.864 (0.043) b	0.806 (0.067) b
Youden index J	0.588	0.576
Sensitivity c	78.3	65.2
Specificity c	80.6	92.4
Positive predictive value c	30.5	48.4
Negative predictive value c	97.1	96.1
True prediction d
Survival	170 (97.1)	195 (96.1)
Dead	41 (69.5)	16 (51.6)
Total	211 (90.2)	211 (90.2)

^a Cut points based on Youden associated criterion: ANN = 0.177 and Cox PH = 0.184.

^b Level of significance = 0.01.

^c values unit is %.

^d Values are presented as No. (%).