Table 3. Multivariate analysis for overall survival and relative survival.
|
Overall survival
|
Relative survival
|
|||
|---|---|---|---|---|
| Variables | Coefficient | P-value | Coefficient | P-value |
| Presence of liver metastases | 1.209 | <0.0001 | 1.072 | <0.0001 |
| Age | 0.039 | <0.0001 | −0.054 | <0.0001 |
| No. of involved regional nodes | 0.115 | <0.0001 | 0.089 | <0.0001 |
| Depth of involvement | 0.351 | 0.0313 | 0.373 | 0.0092 |
| Postoperative CEA | 0.001 | 0.0925 | 0.001 | 0.0321 |
CEA=carcinoembryonic antigen.
Final results after stepwise selection of the best clinical parameters.