Table 5.
Recurrence with death as a competing risk by potential risk factor
| Factor | Level | Hazard ratio | 95% confidence interval | p Value |
|---|---|---|---|---|
| Gender | Female | 1.00 | ||
| Male | 0.68 | 0.28–1.69 | 0.41 | |
| Age | < 30 years | 1.00 | ||
| ≥ 30 years | 1.06 | 0.49–2.26 | 0.89 | |
| Location | Sacroiliac joint or other | 1.00 | ||
| Ilium | 2.09 | 1–4.37 | 0.05 | |
| Location | Ilium or other | 1.00 | ||
| Sacroiliac joint | 0.51 | 0.15–1.73 | 0.28 | |
| Location | Ilium | 1.00 | ||
| Sacroiliac joint | 0.46 | 0.15–1.46 | 0.19 | |
| Maximum tumor size | < 10 cm | 1.00 | ||
| ≥ 10 cm | 2.75 | 1.31–5.77 | 0.007 | |
| Margins | Adequate | 1.00 | ||
| Inadequate | 1.99 | 0.84–4.67 | 0.12 | |
| Histology | Other | 1.00 | ||
| Chondroblastic | 0.73 | 0.34–1.53 | 0.4 | |
| Primary | No | 1.00 | ||
| Yes | 0.81 | 0.36–1.85 | 0.62 | |
| Extent of procedure | Internal | 1.00 | ||
| External | 1.14 | 0.55–2.35 | 0.72 | |
| Radiotherapy | No | 1.00 | ||
| Yes | 1.53 | 0.73–3.17 | 0.26 | |
| Chemotherapy | No | 1.00 | ||
| Yes | 2.01 | 0.99–4.08 | 0.052 |