Table 3.

Models performance.

Model	C-index (95% CI)	Se (C-index)	P-value	AIC
Rad-score (1)	0.810 (0.738~0.882)	0.037	0.256 (1,2)	162.650
Clinicopathological (2)	0.855 (0.790~0.920)	0.033	0.211 (2,3)	154.446
Clinicopathological+Rad-score (3)	0.881 (0.829~0.933)	0.026	0.006 (1,3)	149.025