Patient characteristics (n = 61)
| Variables | Mean (SD) or No. (%) |
|---|---|
| Age (year)a | 63.0 (9.8) |
| Sex | |
| Male | 32 (52.5%) |
| Female | 29 (47.5%) |
| Karnofsky performance scalea | 72.1 (12.1) |
| Enhancing tumor volume (cm3)a | 23.5 (19.1) |
| Extent of resection | |
| Total | 28 (45.9%) |
| Subtotal or partial | 33 (54.1%) |
| Edema | |
| None | 9 (14.8%) |
| Mild-to-moderate | 15 (24.6%) |
| Severe | 37 (60.6%) |
| Non-contrast-enhancing tumor | |
| Negative | 26 (42.6%) |
| Positive | 35 (57.4%) |
| MGMT | |
| Unmethylated | 38 (62.3%) |
| Methylated | 23 (37.7%) |
| EGFR | |
| 0 | 10 (16.4%) |
| 1+ | 3 (4.9%) |
| 2+ | 15 (24.6%) |
| 3+ | 33 (54.1%) |
| p53a | 17.5 (28.0) |
| Ki-67a | 23.4 (19.0) |
↵a Indicates mean and SD in parentheses.