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Molecular characteristics according to histological phenotype
| Oligodendroglioma n = 53 (%) | Oligoastrocytoma n = 50 (%) | Astrocytoma n = 23 (%) | P value | |
|---|---|---|---|---|
| 1p/19q codeletion | 25/53 (47.2) | 5/50 (10) | 2/23 (8.7) | 1.06e-05 |
| P53 overexpression | 8/51 (15.7) | 19/49 (38.8) | 7/20 (35) | .02 |
| IDH mutation | 48/53 (90.6) | 37/43 (86) | 18/21 (85.7) | .7 |
| MGMT promoter methylation | 36/50 (72) | 37/47 (78.7) | 5/20 (75) | .7 |
