Fig. 2From: A noninvasive model discriminating significant histological changes in treatment-naive chronic hepatitis B patients with normal ALT ROC curve of the novel model for identifying significant liver injury in training cohort and validation cohort. A ROC curve of the scoring system in the training cohort (n = 457) combining 4 variables (Age, LF, ALT, PLT) to distinguish between CHB patients with and without significant liver injury. The area under the ROC curve is 0.85. B ROC curve of the scoring system in the validation cohort (n = 157) combining 4 variables (Age, LF, ALT, PLT) to distinguish between CHB patients with and without significant liver injury. The area under the ROC curve is 0.87. ROC receiver operator characteristic, LF liver stiffness, ALT alanine aminotransferase, PLT platelet, CHB chronic hepatitis BBack to article page