Table 4.

Accuracy and predictive value of three models

	Accuracy	95% CI	Sensitivity	Specificity	PPV	NPV
Training cohort
Clinical model	0.696	0.582–0.794	0.730	0.629	0.791	0.548
Radiomic model	0.746	0.636–0.837	0.942	0.370	0.742	0.769
Combined model	0.810	0.706–0.889	0.826	0.777	0.877	0.700
Validation cohort
Clinical model	0.636	0.451–0.795	0.590	0.727	0.812	0.470
Radiomic model	0.636	0.451–0.795	0.727	0.454	0.727	0.454
Combined model	0.696	0.512–0.844	0.727	0.636	0.800	0.538

CI, confifidence interval; NPV, negative-predictive value; PPV, positive-predictive value