Table III.
Prognostic variables in chondrosarcoma as determined by univariate analysis of disease-free survival.
| Variable | 5-year DFS (n=20), % | 95% CI | P-valuea |
|---|---|---|---|
| Age (years) | |||
| <40 | 71 | 38–100 | 0.468 |
| ≥40 | 89 | 68–100 | |
| Gender | |||
| Male | 70 | 34–100 | 0.216 |
| Female | 89 | 68–100 | |
| Tumor size (cm) | |||
| <8 | 100 | 0–100 | 0.020 |
| ≥8 | 66 | 34–98 | |
| Tumor site | |||
| Extremity | 100 | 0–100 | 0.861 |
| Trunk | 66 | 34–98 | |
| Histological grade | |||
| 1 | 93 | 79–100 | 0.033 |
| 2 and 3 | 50 | 1–99 | |
| Surgical margin | |||
| Wide | 84 | 64–100 | 0.017 |
| Intralesional and marginal | 75 | 33–100 | |
| MVD | |||
| Low | 82 | 68–100 | 0.025 |
| High | 67 | 13–100 |
a
Log-rank test was used for survival analyses. DFS, disease-free survival; CI, confidence interval; MVD, microvessel density.