| Univariate | Multivariate | ||||
---|---|---|---|---|---|---|
 | P | RR | 95% CI | P | RR | 95% CI |
Age | 0.67 | 0.882 | 0.494–1.576 |  |  |  |
Tumour size | 0.21 | 1.483 | 0.797–2.759 |  |  |  |
Lymph node status | 0.40 | 0.746 | 0.376–1.479 |  |  |  |
Histological grade | 0.15 | 0.500 | 0.197–1.271 |  |  |  |
ER-α | 0.0009a | 0.342 | 0.181–0.645 | 0.79 | 1.174 | 0.354–3.886 |
PR | 0.0012a | 0.358 | 0.192–0.668 | 0.045a | 0.291 | 0.087–0.972 |
HER2 | 0.0024a | 3.637 | 1.582–8.362 | 0.0046a | 3.710 | 1.498–9.191 |
p53 | 0.0002a | 3.371 | 1.765–6.440 | 0.013a | 2.364 | 1.198–4.665 |
Ki67 | 0.16 | 1.539 | 0.849–2.790 |  |  |  |