Table 4.

Statistics on the performance metrics.

	Max	Min	Mean	St. Dev.
AUC	0.7199	0.5310	0.6537	0.0430
Accuracy	0.8578	0.5967	0.7166	0.1016
Sensitivity	0.6783	0.1736	0.3215	0.1360
Specificity	0.9012	0.8419	0.8751	0.0208
PPV	0.6383	0.0031	0.3938	0.2362
NPV	0.9988	0.5914	0.7760	0.1634

Accuracy: ratio of the correctly predicted sample number to the total predicted sample number. Sensitivity: ratio of correctly predicted positive samples to the total number of true positive samples. Specificity: ratio of correctly predicted negative sample number to the total number of true negative samples. PPV: positive predictive value. NPV: negative predictive value. AUC: area under the receiver operating characteristic curve.