Table 1. Cohort characteristics.
Major clinical and diagnostic characteristics of the study cohort.
| All patients (n=923) | |
|---|---|
| Age at diagnosis (years) | |
| Median | 52 |
| Range | 11–90 |
| Sex (%) | |
| Male | 557 (60) |
| Female | 366 (40) |
| WHO Class at diagnosis (%) [a] | |
| IDH-WT | 596 |
| Glioblastoma | 468 (47) |
| Anaplastic astrocytoma | 65 (7) |
| Diffuse astrocytoma | 23 (2) |
| Gliosarcoma | 15 (2) |
| Diffuse midline glioma, H3 K27M-mutant | 5 (<1) |
| Other | 20 (2) |
| IDH-mutant | 327 |
| Oligodendroglioma | 93 (9) |
| Diffuse astrocytoma | 86 (9) |
| Anaplastic astrocytoma | 80 (8) |
| Anaplastic oligodendroglioma | 43 (4) |
| Glioblastoma | 24 (2) |
| Other | 1 (<1) |
| Prior chemotherapy (specimens)a (%) | |
| Yes | 196 (20) |
| No | 808 (80) |
| Prior radiotherapy (specimens)a (%) | |
| Yes | 191 (19) |
| No | 813 (81) |
a
Total tumor specimens, n=1,004.