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%) |