As shown in Figure 6, TERT promoter mutations (HR = 2.30; 95% CI, 1.09–4.86; P = 0.029) and long RTL (HR = 2.55; 95% CI, 1.18–5.52; P = 0.018) were two predictors of poor survival in glioma patients receiving radiotherapy as an independently variable with respect to WHO grade, KPS score, IDH1 mutations and MGMT methylation, respectively. The gene discussed is TERT; the disease is glioma.