Table 2.

The area under the ROC curve (AUC), accuracy, sensitivity, and specificity of training set and validation set of Model 1, Model 2, and Model 3.

Groups	AUC	Accuracy	Sensibility	Specificity	95% confidence interval
Model 1
Training set	0.889	0.873	0.869	0.881	0.845-0.942
Validation set	0.876	0.862	0.871	0.855	0.875-0.984
Model 2
Training set	0.831	0.836	0.878	0.846	0.875-0.984
Validation set	0.851	0.879	0.847	0.853	0.834-0.921
Model 3
Training set	0.947	0.863	0.874	0.886	0.865-0.944
Validation set	0.923	0.891	0.889	0.895	0.829-0.996