Table 5 Multivariate Cox regression analyses of disease-free survival, overall survival, and cancer-specific survival after PS matching
Variable | Relative ratio | 95% Confidence interval | P value |
|---|---|---|---|
Disease-free survival | |||
Age (≥ 70 years old) | 0.860 | 0.602–1.230 | 0.409 |
RAS/BRAF mutation | 1.558 | 1.117–2.174 | 0.009 |
Preoperative CEA (≥ 20 ng/ml) | 1.635 | 1.155–2.314 | 0.006 |
Preoperative CRS (≥ 3) | 1.637 | 1.142–2.347 | 0.007 |
Number of Liver metastases (> 3) | 1.732 | 1.120–2.678 | 0.014 |
Overall survival | |||
Age (≥ 70 years old) | 0.828 | 0.550–1.247 | 0.367 |
RAS/BRAF mutation | 1.432 | 0.985–2.081 | 0.060 |
Preoperative CEA (≥ 20 ng/ml) | 1.699 | 1.157–2.497 | 0.007 |
Preoperative CRS (≥ 3) | 1.638 | 1.141–2.352 | 0.007 |
Cancer-specific survival | |||
Age (≥ 70 years old) | 0.699 | 0.455–1.076 | 0.103 |
RAS/BRAF mutation | 1.348 | 0.911–1.994 | 0.136 |
Preoperative CEA (≥ 20 ng/ml) | 2.008 | 1.358–2.968 | < 0.001 |
Preoperative CRS (≥ 3) | 1.548 | 1.069–2.241 | 0.021 |