Table 4. Multivariate analysis using Cox’s model for SRCC, PSRCC and AC.
| Variance | Hazard ratio | 95.0% Confidence interval | P value |
|---|---|---|---|
| Tumor stage | |||
| Stage I-II | 1 | ||
| Stage III-IV | 2.419 | 1.993–2.937 | <0.001 |
| Histologic type | |||
| AC | 1 | ||
| SRCC | 1.699 | 1.105–2.610 | 0.016 |
| PSRCC | 2.182 | 1.269–3.751 | 0.005 |
| Age | |||
| < = 35years old | 1 | ||
| >35years old | 0.783 | 0.576–1.065 | 0.119 |
| Gender | |||
| Male | 1 | ||
| Female | 0.983 | 0.838–1.154 | 0.836 |
| Tumor site | |||
| Rectum | 1 | ||
| Right-sided colon | 0.854 | 0.700–1.042 | 0.12 |
| Left-sided colon | 0.745 | 0.611–0.909 | 0.004 |
| Surgery | |||
| R0 resection | 1 | ||
| R1 resection | 4.431 | 3.604–5.447 | <0.001 |
| R2 resection | 10.085 | 7.333–13.869 | <0.001 |
Table 4 CSS, cancer-specific survival. SRCC, signet-ring cell carcinoma; PSRCC, partial signet-ring cell carcinoma; AC, classic adenocarcinoma.