Table 1. Patient and Tumor Characteristics.
| Subcategory | n (%) | |
| Age (years) | ||
| <50 | 20 (22%) | |
| ≥50 | 72 (78%) | |
| median (range) | 57 (31–79) | |
| Sex | ||
| female | 31 (34%) | |
| male | 61 (66%) | |
| KPS | ||
| 90–100 | 76 (83%) | |
| 70–80 | 13 (14%) | |
| <70 | 2 (2%) | |
| Working/Not Working | ||
| W | 77 (84%) | |
| NW | 15 (16%) | |
| RPA | ||
| 3 | 19 (21%) | |
| 4 | 49 (53%) | |
| 5 | 24 (26%) | |
| Extent of Surgery | ||
| Gross total resection | 32 (35%) | |
| Subtotal resection | 44 (48%) | |
| Biopsy only | 16 (17%) | |
| Bevacizumab at 1st recurrence | ||
| Yes | 29 (41%) | |
| No | 33 (47%) | |
| Concurrent temozolomide | ||
| Yes | 83 (90%) | |
| No | 9 (10%) | |
| Adjuvant temozolomide | ||
| Yes | 69 (75%) | |
| No | 18 (20%) | |
| Corticosteroids during RT | ||
| Yes | 67 (73%) | |
| No | 25 (27%) | |
| Levetiracetam during RT | ||
| Yes | 56 (61%) | |
| No | 36 (39%) | |
| Hemisphere | ||
| right | 38 (41%) | |
| left | 53 (58%) | |
| both | 1 (1%) | |
| Location | ||
| Temporal | 23 (25%) | |
| Parietal | 18 (20%) | |
| Frontal | 22 (24%) | |
| Occipital | 2 (2%) | |
| Temporal-Parietal | 5 (5%) | |
| Occipital-Parietal | 6 (7%) | |
| Frontal-Temporal | 6 (7%) | |
| Frontal-Parietal | 4 (4%) | |
| Other | 5 (5%) | |
| Failures | ||
| central | 49 (88%) | |
| marginal | 4 (7%) | |
| distant | 3 (5%) | |
| Tumor Location | ||
| Periventricular | 27 (29%) | |
| Nonperiventricular | 59 (64%) | |
| Unsure | 6 (7%) |
Abbreviations: KPS, Karnofsky Performance Status; W, Working; NW, Not working; RPA, Recursive Partitioning Analysis; RT, Radiation Therapy. Patient demographics, treatment details, and characteristics of primary tumor before surgery/chemoirradiation.