Table 3.
Cox regression analysis for overall survival in southern China.
| Variables | Univariate analysis | Multivariate analysis | ||||
|---|---|---|---|---|---|---|
| Hazard ratio | 95% confidence interval | P value | Hazard ratio | 95% confidence interval | P value | |
| Age | 0.771 | 0.462–1.288 | 0.321 | 0.836 | 0.386–1.814 | 0.651 |
| Tumour stage > 2 cm | 3.406 | 1.232–9.417 | 0.018 | 0.710 | 0.246–2.049 | 0.526 |
| Node-positive | 0.308 | 0.169–0.564 | 0.000 | 0.226 | 0.098–0.519 | 0.000 |
| Estrogen receptor-positive | 0.716 | 0.454–1.127 | 0.149 | 1.888 | 0.702–5.079 | 0.208 |
| Progesterone receptor-positive | 0.647 | 0.404–1.035 | 0.069 | 0.561 | 0.207–1.518 | 0.255 |
| HER2-positive | 0.945 | 0.599–1.490 | 0.808 | 1.576 | 0.825–3.009 | 0.168 |
| Ki-67 high expression | 2.128 | 1.057–4.285 | 0.034 | 1.013 | 0.115–8.902 | 0.990 |
| Mastectomy | 3.351 | 0.463–24.256 | 0.231 | 1.020 | 0.501–2.077 | 0.957 |
| Radiation therapy | 1.088 | 0.677–1.748 | 0.727 | 1.130 | 0.584–2.188 | 0.717 |