Table 6.
Metastasis with death as a competing risk by potential risk factor
| Factor | Level | Hazard ratio | 95% confidence interval | p Value |
|---|---|---|---|---|
| Gender | Female | 1.00 | ||
| Male | 0.96 | 0.42–2.21 | 0.92 | |
| Age | < 30 years | 1.00 | ||
| ≥ 30 years | 1.20 | 0.57–2.5 | 0.63 | |
| Location | Sacroiliac joint or other | 1.00 | ||
| Ilium | 1.67 | 0.85–3.28 | 0.14 | |
| Location | Ilium or other | 1.00 | ||
| Sacroiliac joint | 0.95 | 0.34–2.66 | 0.92 | |
| Location | Ilium | 1.00 | ||
| Sacroiliac joint | 0.72 | 0.24–2.13 | 0.55 | |
| Maximum tumor size | < 10 cm | 1.00 | ||
| ≥ 10 cm | 2.85 | 1.38–5.9 | 0.005 | |
| Margins | Adequate | 1.00 | ||
| Inadequate | 2.00 | 0.96–4.15 | 0.06 | |
| Histology | Other | 1.00 | ||
| Chondroblastic | 0.76 | 0.38–1.53 | 0.44 | |
| Primary | No | 1.00 | ||
| Yes | 0.73 | 0.32–1.64 | 0.44 | |
| Extent of procedure | Internal | 1.00 | ||
| External | 1.37 | 0.68–2.76 | 0.38 | |
| Radiotherapy | No | 1.00 | ||
| Yes | 1.32 | 0.66–2.62 | 0.43 | |
| Chemotherapy | No | 1.00 | ||
| Yes | 3.73 | 0.79–17.64 | 0.10 |