sB7H3 in Children with Acute Appendicitis: Its Diagnostic Value and Association with Histological Findings

Figure 3

Different ROC curves and parameters for evaluation of sB7H3 for distinguishing different degrees of AA. The ROC curve is drawn by SPSS, and Youden’s index is calculated by the corresponding coordinate value on the curve. The maximum value of Youden’s index is the ideal cutoff value. (a) The ROC curve and parameters for evaluation of sB7H3 in the nonappendicitis group and the appendicitis group. (b) The ROC curve and parameters for evaluation of sB7H3 in the diagnosis of SA and complex AA (PA+GA). (c) The ROC curve and parameters for evaluation of sB7H3 for the diagnosis of PA and GA. AUROC: area under the curve; PPV: positive predictive value; NPV: negative predictive value; +LR: positive likelihood ratios; -LR: negative likelihood ratios.

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