Risk prediction of biliary infection after endoscopic drainage for malignant perihilar biliary obstruction: A 10-year multicenter retrospective study

Table 3 Predictive performance metrics of the prediction models

	Modeling group		Validation group
	LR	ANN	LR	ANN
AUC	0.734	0.791	0.867	0.940
95%CI	0.655-0.813	0.710-0.872	0.812-0.922	0.928-0.952
Accuracy (%)	71.4	80.2	79.7	84.1
Specificity (%)	79.6	89.8	91.8	93.1
Sensitivity (%)	28.1	46.9	33.3	55.6

ANN: Artificial neural network; AUC: Area under the curve; CI: Confidence interval; LR: Logistic regression.