Table 3.
Prognostic factors retained in multivariate analysis by Cox model
| Factor | χ2 | P-value | RR | 95% CI |
|---|---|---|---|---|
| Sex (Male/Female) | 2.659 | 0.103 | 0.770 | 0.562-1.054 |
| Surgical approach (left thoracic/Ivor-Lewis/Tri-incisional) | 1.052 | 0.591 | 1.173 | 0.811-1.695 |
| Tumor length (≤ 4.0 cm/> 4.0 cm) | 10.322 | 0.001 | 1.537 | 1.182-1.997 |
| T stage (T1/T2/T3/T4 ) | 11.797 | 0.008 | 3.874 | 2.526-28.529 |
| N stage (N0/N1/N2/N3) | 27.239 | < 0.001 | 1.929 | 1.369-2.718 |
| Grade (Well/Moderately/Poorly) | 7.121 | 0.028 | 1.175 | 1.376-1.778 |
| Tumor site | 5.897 | 0.052 | 0.538 | 0.326-0.888 |