| DFSa | DFSb | ||||
---|---|---|---|---|---|---|
 | HR | 95.0% CI | HR | 95.0% CI | ||
 |  | Lower | Upper |  | Lower | Upper |
Female | 1.00 | Â | Â | 1.00 | Â | Â |
Male | 0.85 | 0.62 | 0.18 | 0.90 | 0.66 | 1.22 |
Age ≤ 75 years | 1.00 |  |  | 1.00 |  |  |
Age > 75 years | 2.68 | 1.92 | 3.73 | 2.50 | 1.83 | 3.42 |
Elective operation | 1.00 | Â | Â | 1.00 | Â | Â |
Emergency operation | 1.64 | 0.94 | 2.86 | 2.06 | 1.23 | 3.46 |
Colon | 1.00 | Â | Â | 1.00 | Â | Â |
Rectum | 1.20 | 0.83 | 1.73 | 1.17 | 0.82 | 1.66 |
< 12 lymph nodes analysed | 1.00 | Â | Â | 1.00 | Â | Â |
≥ 12 lymph nodes analysed | 1.13 | 0.79 | 1.60 | 1.11 | 0.79 | 1.55 |
Stage I | 1.00 | Â | Â | 1.00 | Â | Â |
Stage II | 1.23 | 0.72 | 2.11 | 1.43 | 0.86 | 2.36 |
Stage III | 2.52 | 1.49 | 4.27 | 2.25 | 1.35 | 3.74 |
Well-moderate tumour differentiation | 1.00 | Â | Â | 1.00 | Â | Â |
Poor tumour differentiation | 1.02 | 0.69 | 1.53 | 1.18 | 0.82 | 1.71 |
No vascular invasion | 1.00 | Â | Â | 1.00 | Â | Â |
Vascular invasion | 1.44 | 0.85 | 2.44 | 1.50 | 0.91 | 2.48 |