Table 4 Cox regression analysis
| Â | Â | Overall survival | Disease-free survival | ||
|---|---|---|---|---|---|
Prognostic factor | Level | Hazard ratio (95% CI) | p value | Hazard ratio (95% CI) | p value |
Basal | CK14-positive | 0.78 (0.56–1.08) | 0.14 | 0.72 (0.52–0.99) | 0.05 |
Age group in years | <35 | 1.0 | 0.0005 | 1.0 | 0.005 |
|  | 35–49 | 0.86 (0.54–1.37) |  | 0.96 (0.60–1.52) |  |
|  | 50–64 | 0.77 (0.49–1.22) |  | 0.80 (0.51–1.26) |  |
|  | 65+ | 1.50 (0.91–2.46) |  | 1.43 (0.87–2.36) |  |
Tumour size | p1 | 1.0 | 0.052 | 1.0 | 0.042 |
|  | p2 | 1.45 (0.84–2.48) |  | 1.40 (0.83–2.36) |  |
|  | p3 | 1.87 (1.06–3.31) |  | 1.92 (1.10–3.33) |  |
Lymph node metastasis | Positive | 1.83 (1.42–2.35) | <0.0001 | 1.81 (1.42–2.32) | <0.0001 |