| Colorectal cancer (n = 277) | Rectal cancer (n = 104) | Colon cancer (n = 173) | |||
---|---|---|---|---|---|---|
Variables | HR (95% CI) | p-value | HR (95% CI) | p-value | HR (95% CI) | p-value |
miR-21 expression (low vs. high) | 2.24 (1.25-4.02) | 0.007 | 1.65 (0.65-4.16) | 0.295 | 2.45 (1.05-5.72) | 0.038 |
Age (<65 years vs. ≥65 years) | 1.03 (0.56-1.89) | 0.924 | 0.27 (0.10-0.70) | 0.007 | 2.48 (1.00-6.12) | 0.049 |
Tumor type (non-mucinous vs. mucinous) | 0.61 (0.13-2.97) | 0.539 | 0.62 (0.03-11.50) | 0.751 | 1.03 (0.13-8.48) | 0.976 |
Differentiation (well or moderately vs. poorly) | 2.18 (0.83-5.71) | 0.114 | 2.60 (0.55-12.21) | 0.225 | 1.56 (0.41-5.94) | 0.513 |
pT (T3 vs. T4a) | 1.97 (1.01-3.83) | 0.046 | 2.26 (0.75-6.79) | 0.145 | 2.27 (0.86-5.97) | 0.098 |
Lymph node metastasis (absent vs. present) | 4.55 (2.23-9.29) | 0.00003 | 11.75 (3.33-41.48) | 0.0001 | 3.02 (1.22-7.47) | 0.017 |
CEA (<5 ng/dL vs. ≥5 ng/dL) | 2.63 (1.46-4.74) | 0.001 | 3.32 (1.39-7.51) | 0.006 | 2.65 (1.13-6.21) | 0.025 |
Adjuvant therapy (no vs. yes) | 2.48 (0.32-19.32) | 0.386 | NA | NA | 2.15 (0.26-18.08) | 0.431 |