Table 4. Multivariate analysis of disease-free survival and overall survival among the four breast cancer subtypes according to lymph node status.
| Subtypes | Disease-free survival |
Disease-free survival |
||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P | HR | 95% CI | P | |
| Total | ||||||
| Luminal A | 1.00 | (ref.) | 1.00 | (ref.) | ||
| Luminal B | 1.54 | 1.11-2.13 | 0.009 | 2.32 | 1.62-3.32 | <0.001 |
| HER2 | 1.70 | 1.13-2.58 | 0.012 | 2.01 | 1.26-3.21 | 0.003 |
| Triple-negative | 1.79 | 1.36-2.37 | <0.001 | 1.64 | 1.18-2.28 | 0.004 |
| Lymph node positive | ||||||
| Luminal A | 1.00 | (ref.) | 1.00 | (ref.) | ||
| Luminal B | 1.65 | 1.13-2.41 | 0.009 | 2.27 | 1.50-3.45 | <0.001 |
| HER2 | 1.80 | 1.11-2.91 | 0.017 | 2.09 | 1.23-3.55 | 0.012 |
| Triple-negative | 1.45 | 1.03-2.05 | 0.032 | 1.49 | 0.99-2.22 | 0.052 |
| Lymph node negative | ||||||
| Luminal A | 1.00 | (ref) | 1.00 | (ref.) | ||
| Luminal B | 1.35 | 0.72-2.54 | 0.355 | 2.75 | 1.33-5.67 | 0.006 |
| HER2 | 1.21 | 0.55-2.66 | 0.644 | 1.50 | 0.52-4.35 | 0.452 |
| Triple-negative | 2.21 | 1.43-3.41 | <0.001 | 2.24 | 1.18-4.25 | 0.013 |
HR: hazard ratios; CI: confidence interval.