Tested Variable | Number (%) | Univariate | Multivariate | ||||
---|---|---|---|---|---|---|---|
median OS (M) | P value | Tested Variable | HR | 95%CI | P value | ||
Age at surgery (median; 63.5) | |||||||
  < 63-years | 21 (43.8) | 29.2 | 0.4 |  |  |  |  |
  ≥ 63-years | 27 (56.2) | 16.8 |  |  |  |  |  |
Median time from STI to surgery (12mo) | |||||||
  ≥ 12 months | 22 (45.8) | 32.9 | 0.13 |  |  |  |  |
  < 12 months | 26 (54.2) | 13.1 |  |  |  |  |  |
Pathological diagnosis | |||||||
 Radiation necrosis alone | 6 (12.5) | 22.8 | 0.76 |  |  |  |  |
 Tumor recurrence + Necrosis | 42 (87.5) | 20.2 |  |  |  |  |  |
Gender | |||||||
 Female | 16 (33.3) | 29 | 0.11 |  |  |  |  |
 Male | 32 (66.7) | 16.8 |  |  |  |  |  |
Location | Â | Â | Â | Location | Â | Â | Â |
 Supratentrial | 42 (87.5) | 25.5 | 0.016 | Supra- vs Infratentrial | 0.5 | 0.18–1.52 | 0.2 |
 Infratentrial | 6 (12.5) | 9.1 |  |  |  |  |  |
Primary cancer | Â | Â | Â | Primary cancer | Â | Â | Â |
 Breast | 9 (18.8) | 43 | 0.003 | Breast vs Lung | 0.2 | 0.036–0.55 | 0.002 |
 Lung | 31 (64.6) | 16.8 |  | Breast vs Others | 0.1 | 0.013–0.34 | 7E-04 |
 Others | 8 (16.6) | 9.4 |  | Lung vs Others | 0.5 | 0.2–1.2 | 0.12 |
Neurological deficit | |||||||
 No | 15 (31.3) | 21.9 | 0.56 |  |  |  |  |
 Yes | 33 (68.7) | 16.8 |  |  |  |  |  |
RPA | Â | Â | Â | RPA | Â | Â | Â |
 Class 1 | 6 (12.5) | NR | 0.023 | Class 1 vs 3 | 0.1 | 0.02–0.51 | 0.002 |
 Class 2 | 18 (37.5) | 21.9 |  | Class 2 vs 3 | 0.4 | 0.16–0.95 | 0.042 |
 Class 3 | 24 (50) | 11.2 |  | Class 1 vs 2 | 0.3 | 0.05–0-1.35 | 0.13 |
Surgical technique | |||||||
 Minimum resection | 23 (48) | 25.5 | 0.7 |  |  |  |  |
 Resection with free margine | 25 (52) | 17.9 |  |  |  |  |  |
Extent of resection | |||||||
 Subtotal removal | 6 (12.5) | 28.2 | 0.98 |  |  |  |  |
 Gross total removal | 42 (87.5) | 20.2 |  |  |  |  |  |
Radiotherapy after salvage surgery | |||||||
 Yes | 15 (31.3) | 20.2 | 0.38 |  |  |  |  |
 No | 33 (68.7) | 16.8 |  |  |  |  |  |