Table 3.
Univariate logistic regression to identify risk factors for the prediction of death in all patients with osteosarcoma (total n = 268)
| Variable | OR | 95% CI | p |
|---|---|---|---|
| Fracture (reference: no fracture) | 0.88 | 0.41–1.86 | 0.731 |
| Age group (reference: ≤ 10) | |||
| 10–20 | 1.52 | 0.63–3.67 | 0.355 |
| >20 | 2.03 | 0.82–5.05 | 0.127 |
| Gender (reference: male) | 0.80 | 0.48–1.34 | 0.420 |
| Tumor stage (reference: IB) | |||
| IIB | 1.68 | 0.17–16.75 | 0.658 |
| III | 12.00 | 1.08–133.61 | 0.043 |
| Tumor location (reference: fibula) | |||
| Femur | 0.96 | 0.21–4.51 | 0.963 |
| Tibia | 0.52 | 0.12–2.96 | 0.524 |
| Humerus | 0.31 | 0.07–2.31 | 0.306 |
| Necrosis rate < 90% (reference: ≥ 90%) | 2.11 | 1.01–4.44 | 0.048 |
| Lung metastasis (reference: no) | 3.32 | 1.96–5.62 | 0.000 |
| Local recurrence (reference: no) | 1.81 | 1.01–3.25 | 0.046 |