Figure 2

CDC25B autoantibodies in sera from patients with ESCC and healthy controls and ROC Curve analysis. A. CDC25B-Abs were detected by reverse capture ELISA in sera from patients with ESCC (Patient) and healthy controls (Control). The horizontal line indicates the cut-off value used to define positive samples. The results shown are the mean values of two independent experiments. B. ROC curve of CDC25B-Abs in sera from patients with ESCC. The area under the ROC curve is 0.870. The cut-off value is determined according to the ROC curve.