Table 3.
Results of Stepwise multivariate analysis for Prognostic Factors (n = 104). Values in parentheses are 95% confidence intervals. * Cox proportional hazards model.
| Variable | HR | 95% CI | P * value |
|---|---|---|---|
| EF-Tu | 0.460 | 0.220–0.960 | 0.038 |
| Distant metastasis | 4.323 | 1.442–12.963 | 0.009 |
| Serosal invasion (yes vs. no) | 6.242 | 1.808–21.548 | 0.004 |
| mLNs | 1.082 | 1.001–1.169 | 0.047 |
| tLNs | 0.053 | ||
| Type of operation | 0.096 | ||
| Age (years) (>55 vs ≤55) | 0.187 | ||
| Tumor size (≦4 cm vs >4 cm) | 0.547 | ||
| Histological type (undifferentiated vs differentiated) | 0.812 | ||
| Gender | 0.810 | ||
| Tumor location | 0.856 |
HR indicates hazards ratio; 95% CI, 95% confidence interval; mLNs: metastatic lymph nodes; tLNs: total retrieved lymph nodes; Variables that were entered into the regression model were EF-Tu, distant metastasis, Serosal invasion, mLNs, tLNs, type of operation, age, tumor size, histological type, Gender, tumor location. Number of mLNs, and number of tLNs were consecutive variables; others were categorized variables.