Table 1. Patient demographics.
Abbreviations. M:male; F:female; Pre-op: preoperative; KPS: Karnofsky Performance Status; Post-op: postoperative; SE: standard error; L: left; R: right
| Grade 2 | Grade 3 | Grade 4 | All | |
| Number of patients | 23 | 16 | 33 | 72 |
| Age (mean ± SE) | 42 ± 2.6 | 43 ± 3.5 | 42 ± 2.0 | 42 ± 1.4 |
| Gender (M/F) | 17/6 | 11/5 | 20/13 | 48/24 |
| Side (L/R) | 6/17 | 6/10 | 11/22 | 23/49 |
| Tumor volume | ||||
| < 50cc | 14 (61%) | 12 (75%) | 16 (48%) | 58% |
| ≥ 50cc | 9 (39%) | 4 (25%) | 17 (52%) | 42% |
| Pre-op motor deficit | 26% | 25% | 39% | 32% |
| Pre-op speech deficit | 17% | 0% | 21% | 15% |
| Previous surgery | 74% | 63% | 79% | 74% |
| Previous radiation | 4% | 25% | 70% | 39% |
| Previous chemotherapy | 4% | 25% | 48% | 29% |
| Pre-op KPS > 70 | 91% | 88% | 70% | 81% |
| KPS improvement post-op | 35% | 63% | 39% | 43% |
| KPS decline post-op | 0% | 13% | 12% | 8% |
| Post-op KPS > 70 at 3 months | 100% | 88% | 61% | 85% |