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Significant Prognostic Risk Factors for Mortality (Overall Patient Survival) Determined by Multivariate Analysis*
| Risk factor | Coefficient (B) | Relative risk | 95% Confidence interval |
|---|---|---|---|
| Tumor number > 2 | 0.5514 | 1.74 | 1.21–2.50 |
| Tumor size > 8 cm | 0.4006 | 1.49 | 0.96–2.32 |
| Interval ≤ 30 mo | 0.2585 | 1.29 | 0.87–1.93 |
| Bilobar tumors | 0.2256 | 1.25 | 0.86–1.82 |
Excludes the 62 patients with positive surgical margins, lymph node invasion, or distant metastasis.
