TERT and glioblastoma: Against a reference of the TERT mutant-MGMT unmethylated GBMs, the HR for OS incorporating the interaction was the lowest in the TERT mutant-MGMT methylated GBM (HR, 0.266), followed by the TERT wild-type-MGMT methylated (HR, 0.317), and the TERT wild-type-MGMT unmethylated GBMs (HR, 0.542).