Table 2. Patients' demographic characteristics.
| Patient characteristics | N=24 (%) |
| Age group (years) | |
| <40 | 10 (42%) |
| >40 | 14 (58%) |
| Gender (%) | |
| Male | 14 (58%) |
| Female | 10 (42%) |
| Karnofsky performance score (%) | |
| 60 | 3 (12%) |
| 70 | 13 (54%) |
| 80 | 8 (33%) |
| World Health Organization grade (%) | |
| III | 7 (30%) |
| IV | 17 (70%) |
| Location (%) | |
| Frontal | 12 (50%) |
| Parietal | 5 (21%) |
| Temporal | 4 (17%) |
| Occipital | 3 (12%) |