Table 4.

Detailed performance metrics of the three models

Models	Sensitivity	Specifificity	AUC
	(95%CI)	(95%CI)	(95%CI)
Training set	0.675	0.655	0.713
	0.645–0.706	0.646–0.664	0.697–0.730
Internal validation set	0.708	0.635	0.716
	0.665–0.752	0.622–0.649	0.691–0.740
External validation set	0.705	0.613	0.694
	0.632–0.779	0.597–0.630	0.653–0.735