Table 3.
Patient Characteristics of Nonmetastatic GBM Cases at MSKCC
| Median age at diagnosis (y) | 61 (21–90) |
| Gender | |
| Male | 59% |
| Female | 41% |
| Site of glioblastoma | |
| Temporal | 35.7% |
| Frontal | 33.9% |
| Parietal | 25.4% |
| Occipital | 4.7% |
| Corpus callosum | 1.5% |
| Thalamus | 2.3% |
| Brainstem | 0.9% |
| Multifocal | 0.9% |
| Basal ganglia | 0.6% |
| Cerebellum | 0.3% |
| Insula | 0.6% |
| Optic nerve | 0.3% |
| Number of surgeries | |
| 1 | 69.3% |
| 2 | 26.6% |
| 3 | 3.8% |
| 4 | 0.3% |
| Radiation | |
| Yes | 99.1% |
| No | 0.9% |
| Chemotherapy | |
| Yes | 98.8% |
| No | 1.2% |
| CSF shunt | |
| Yes | 6.1% |
| No | 93.9% |
| MGMT-methylated | |
| Yes | 20.5% |
| No | 64.3% |
| Unknown | 15.2% |
| IDH-mutated | |
| Yes | 4.1% |
| No | 95.9% |
| Median OS | 16.9 (2.5-68) |