Table 2.

Sensitivity and specificity of I‐FABP, hs‐CRP, and zonulin for diagnosis of BTI

Index	AUCROC	Cutoff	Sensitivity	Specificity	95% CI	PPV	NPV
I‐FABP	0.884	2.1	0.804	0.829	0.814–0.954	0.872	0.744
hs‐CRP	0.880	1.0	0.863	0.800	0.785–0.976	0.963	0.632
Zonulin	0.570	6.9	0.660	0.657	0.444–0.697	0.733	0.575

AUC^ROC, area under ROC curves; BTI, biliary tract infection; CI, confidence interval; hs‐CRP, high‐sensitivity C‐reactive protein; I‐FABP, intestinal fatty acid‐binding protein; NPV, negative predictive value; PPV, positive predictive value; ROC, receiver operating characteristic.