Fig. 2.

ROC curve of clinical markers for diagnosis of ascitic fluid infection. a AUC for PCT was 0.852 (95% CI 0.803–0.921, P < 0.001), dCHC 0.837 (95% CI 0.773–0.923, P < 0.001), CRP 0.669 (95% CI 0.610–0.732, P = 0.0624), sNFI 0.838 (95% CI 0.777–0.903, P < 0.001), and WBC 0.624 (95% CI 0.500–0.722, P = 0.0881). For calculated score: AUC for a null hypothesis was 0.5. b AUC for calculated score was 0.937 (95% CI 0.901–0.994, P < 0.001). For calculated score: AUC for a null hypothesis was 0.5. ROC: receiver operating curve, AUC: area under the curve, CON: for all patients