Table 1.
Patient characteristics
| Characteristics | Patients, n=120 (%) |
|---|---|
| Age, y | |
| Median | 39 |
| Range | 19–71 |
| Sex | |
| Male | 67 (56) |
| Female | 53 (44) |
| KPS | |
| 90–100 | 106 (88) |
| <90 | 12 (10) |
| Unknown | 2 (2) |
| Midline crossing | |
| No | 104 (87) |
| Yes | 16 (13) |
| Extent of resection | |
| GTR | 0 |
| STR | 92 (77) |
| Biopsy only | 28 (23) |
| Histology | |
| Oligodendroglioma | 57 (48) |
| Oligoastrocytoma | 20 (17) |
| Astrocytoma | 43 (36) |
| 1p/19q status | |
| Codeleted | 44 (37) |
| Noncodeleted | 55 (46) |
| Unknown | 21 (18) |
| IDH1-R132H status* | |
| Mutated | 83 (70) |
| Intact | 18 (15) |
| Unknown | 19 (16) |
| Molecular subtype | |
| 1p/19q codel | 44 (37) |
| IDH1mut | 37 (31) |
| IDH1wt | 16 (13) |
| Unknown | 23 (19) |
*IDH1 status was either directly measured or imputed based on 1p/19q status. GTR, gross total resection; STR, subtotal resection.