Multivariate Cox regression analysis of 10-year LRR and DR.
| LRR | DR | |||
|---|---|---|---|---|
| Hazard ratio (95% CI) | P | Hazard ratio (95% CI) | P | |
| Number of positive nodes (none vs. 1-3 nodes) | 1.643 (0.902-2.994) | 0.105 | 1.426 (0.894-2.275) | 0.137 |
| Positive nodes (%) (≤ 20% vs. > 20%) | 12.816 (4.657-35.266) | < 0.001 | 11.088 (3.807-32.297) | < 0.001 |
| Preoperation chemotherapy (yes vs. no) | 0.571 (0.241-1.355) | 0.204 | / | / |
| Histology (ductal vs. others) | / | / | 0.390 (0.179-0.851) | 0.018 |