Table 2 Results of multivariable Cox regression to identify significant prognostic factors
Variable | Adjusted OR | 95% CI | p value |
|---|---|---|---|
Age | 0.96 | 0.94–0.99 | 0.005 |
Lesion size | |||
  < 2 cm | Referencea | ||
 2–5 cm | 1.57 | 0.57–4.34 | 0.383 |
  > 5 cm | 3.58 | 1.38–9.33 | 0.009 |
Tumor type | |||
 Giant cell tumor of bone (GCTB) | Referencea | ||
 Fibrous dysplasia (FD) | 0.46 | 0.24–0.88 | 0.019 |
 Cartilaginous tumors | 0.18 | 0.07–0.46 | < 0.001 |
 Simple/Aneurysmal bone cyst (SBC/ABC) | 0.35 | 0.15–0.78 | 0.010 |
 Chondroblastoma | 0.50 | 0.18–1.37 | 0.179 |
 Other | 0.18 | 0.04–0.80 | 0.024 |
Anatomical site | |||
 Distal femur and more distal locations | Referencea | ||
 Proximal femur | 2.49 | 1.21–5.15 | 0.014 |
 Distal humerus and more distal locations | 1.75 | 0.80–3.83 | 0.159 |
 Proximal humerus | 3.34 | 1.61–6.92 | 0.001 |
 Pelvis, scapula and clavicle | 2.48 | 0.81–7.62 | 0.112 |
Preoperative mean arterial pressure (pre-op MAP) | |||
  < 90 mmHg | Referencea | ||
 90–105 mmHg | 1.51 | 0.86–2.62 | 0.149 |
  > 105 mmHg | 2.61 | 1.20–5.67 | 0.015 |