Figure 2. Seven oxidative stress-related genes predict patient prognosis model in training dataset. (A) A signature model for each of the 7 genes was constructed, and the risk score for each patient based on the model was calculated. X axis is number of patients. (B) Survival analysis about patients in the high-risk group and the low-risk group. (C) Analysis of the area under the ROC curve. The signature model based on Cox regression coefficients and gene expression, the riskscore = gene A expression* coefficients A+ gene B expression* coefficients B.