Figure 1

(A) ROC curves analysis for predicting SAP by LDH and RDW. The area under curve AUC for combination curve of RDW and LDH was 0.780 (95%CI 0.680 to 0.880. P < 0 .001). The Z test showed there were no significant differences in AUC between the combination group and the single LDH group (P > 0.05). (B) ROC curves analysis for predicting SAP by risk score. The AUC of the risk score was 0.906, with a sensitivity of 0.875 and a specificity of 0.828. (C) ROC curves analysis for predicting MAP by TG. The AUC for TG was 0.724 (P < 0.001, 95% CI 0.612 to 0.837, cutoff value = 4.720). AUC, area under curve; ROC, receiver operating characteristic curve; AUC, area under curve; SAP, severe acute pancreatitis; LDH, lactate dehydrogenase; RDW, red cell distribution width; MAP, mild acute pancreatitis; TG, triglyceride.