Patient characteristics
| Parameter | No PTBE | PTBE | Significance |
|---|---|---|---|
| Age (mean ± SEM) (yr) | 53 ± 2.6 | 66 ± 2.9 | P = .0014 |
| Sex | 2 Male, 13 female | 5 Male, 9 female | P = .21 |
| Tumor volume (mean ± SEM) (cm3) | 15.0 ± 3.7 | 35.5± 8.2 | P = .0124 |
| Tumor location | |||
| Frontal | 6 | 6 | P = .97 |
| Temporal | 5 | 4 | |
| Parietal | 3 | 0 | |
| Occipital | 1 | 1 | |
| Multiple lobes | 0 | 3 |
Note:—SEM indicates standard error of the mean.