Patient demographics, clinical data, pathologic findings, and CT findings
| Variable | WHO Grade II | WHO Grade III | Total |
|---|---|---|---|
| No. of cases | 63 | 39 | 102 |
| Sex (M/F) | 32:31 | 23:16 | 55:47 |
| Mean age (range) (yr) | 40.9 (19–65) | 40.2 (19–69) | 40.7 (19–69) |
| Mean resection rate | 85.1% | 90.7% | 87.3% |
| Histology | |||
| Oligodendroglioma | 41 | 22 | 63 |
| Oligoastrocytoma | 22 | 17 | 39 |
| 1p/19q LOH | |||
| Yes | 47/63 (75%) | 26/39 (67%) | 73/102 (72%) |
| No | 16/63 (25%) | 13/39 (33%) | 29/102 (28%) |
| MIB1 labeling index (mean) (%) | 4.29 ± 2.06 | 12.64 ± 8.53 | 7.48 ± 6.82 |
| Calcification (head CT) | |||
| Yes | 25/63 (40%) | 12/39 (31%) | 37/102 (36%) |
| No | 38/63 (60%) | 27/39 (69%) | 65/102 (64%) |