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Results of multivariate analysis for factors affecting overall survival.
| Clinical variables | Hazard ratio | 95% CI | P-value |
|---|---|---|---|
| Histological subtype | |||
| Chondroblastic | 4.6 | 1.0–21.3.. | 0.044 |
| Other subtypes | 1 | ||
| Extent of primary tumor necrosis | |||
| <90% | 3.80 | 0.7320.0 | 0.092 |
| ≥90% | 1 | ||
| Detection of metastasis | |||
| During chemotherapy | 10.8 | 0.93126.4 | 0.051 |
| At diagnosis or after completion of chemotherapy | 1 | ||
| Visceral pleural involvement | |||
| Present | 1.3 | 0.315.26 | 0.730. |
| Absent | 1 |
CI, confidence interval.
