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Cox multivariate analysis of metastasis free survival for patients without axillary lymph node invasion.
| Variable | Coefficient value | Hazard ratio 95% CI | p-value |
| 8p12 | 0.925 | 0.15 | |
| Non Amplified | 1 | ||
| Amplified | 2.52 (0.72–8.79) | ||
| Ki67 | 1.29 | 0.055 | |
| <20 | 1 | ||
| ≥20 | 3.63 (0.97–13.52) |
