TABLE 5.
Mutivariate analysis for survival
| Variable | CHR | 95% CI | p |
|---|---|---|---|
| Gender | |||
| Female | 0.56 | 0.36–0.88 | 0.012 |
| Male | 1 | ||
| Age | |||
| <65 | 1 | ||
| ≥65 | 1.04 | 0.80–1.34 | 0.783 |
| Tumor length | |||
| <5cm | 1 | ||
| ≥5cm | 0.97 | 0.78–1.21 | 0.785 |
| T-stage | |||
| T1–2 | 1 | ||
| T3 | 1.35 | 0.99–1.85 | 0.059 |
| T4 | 2.15 | 1.37–3.36 | 0.001 |
| N-stage | |||
| N1 | 1 | ||
| N2 | 1.55 | 1.20–2.00 | 0.001 |
| N3 | 2.27 | 1.45–3.54 | <0.001 |
| Tumor differentiation | |||
| High (G1) | 1 | ||
| Moderate (G2) | 0.85 | 0.62–1.17 | 0.319 |
| Low (G3) | 1.00 | 0.70–1.44 | 0.993 |
| PORT | |||
| Yes | 0.71 | 0.55–0.87 | 0.001 |
| No | 1 | ||
| POCT | |||
| Yes | 1.20 | 0.92–1.55 | 0.163 |
| No | 1 |
CHR = Cox hazard ratio; 95% CI = 95% Confidence interval; PORT = postoperative radiation therapy; POCT = postoperative chemotherapy