2. External validity.
Study | Sample size | Age (median and range) | Sex (%M:F) | Histology | KPS | Extent of surgery | Subgroups analysed | Follow‐up |
Vuorinen 2003 | Total = 30 Resection = 14 Biopsy = 16 | Resection: 70 (66 to 80). Biopsy: 72 (67 to 79) | Resection: 7 male and 3 female. Biopsy: 4 male and 9 female |
Resection: grade IV: 10; malignant lymphoma: 1; haematoma: 1; infarct: 1; withdrawal: 1. Biopsy: grade IV: 8; grade III: 5; metastases: 2; haematoma: 1 | Resection: 80 (60 to 90). Biopsy: 70 (60 to 90) | Total: 2; Subtotal: 7; Resection: 1 | None. Subsequent hazard ratios stratified for tumour grade and radiotherapy dose. | Up to 590 days |
KPS: Karnofsky Performance Score