Figure 4. Univariate cox and LASSO Cox regression analysis for overall survival related interferon gamma response genes. (A) Forest plots showing the prognostic value detection of various clinical features and the risk score, in which the HRs, corresponding 95% confidence intervals, and p values are displayed. (B) LASSO regression analysis was used to calculate the coefficient of interferon gamma response genes. (C) Seven genes were selected as active covariates to determine the prognostic value after 10-fold cross-validation for the LASSO model.