Table 2.
Multivariate analysis for OS. Increased age or larger tumor size, having a sarcomatoid tumor, and a radical nephrectomy and T stage 3 or 4 have a negative effect on overall survival. When all of those are controlled a patient with chRCC has a higher likelihood of survival than a patient with ccRCC.
| Parameter | Hazard Ratio | CI Lower | CI Upper | p-value |
|---|---|---|---|---|
| Histology (chRCC vs ccRCC) | 0.556 | 0.424 | 0.729 | <.0001 |
| Age at Nephrectomy | 1.047 | 1.039 | 1.056 | <.0001 |
| Max Tumor Size | 1.089 | 1.061 | 1.118 | <.0001 |
| Procedure type (Radical vs. Partial Nephrectomy) | 1.603 | 1.269 | 2.025 | <.0001 |
| Sarcomatoid Differentiation | 3.478 | 2.631 | 4.597 | <.0001 |
| 2010 pT Stage (T3 or T4 vs. T1 or T2) | 1.743 | 1.432 | 2.121 | <.0001 |