Table 2.
Association between clinicopathologic characteristics and recurrence score (RS) results
| Prognostic factor | Mean RS (range) | p-value |
|---|---|---|
| Tumor size (cm) | ||
| < 1 | 18.05 (6-41) | 0.182 |
| ≥ 1 and < 2 | 16.48 (1-62) | |
| ≥ 2 | 18.39 (0-67) | |
| Histologic type | ||
| Ductal | 17.14 (0-67) | 0.930 |
| Lobular | 16 (9-22) | |
| Others | 19.89 (6-62) | |
| Histologic grade | ||
| 1 | 13.1 (5-28) | < 0.001 |
| 2 | 16.66 (0-62) | |
| 3 | 25.64 (1-67) | |
| Nodal status | ||
| N0 | 16.91 (0-67) | 0.057 |
| N1mi | 21.4 (8-42) | |
| Lymphatic invasion | ||
| No | 16.4 (1-67) | 0.024 |
| Yes | 20.35 (0-47) | |
| Ki-67 (%) | ||
| < 14 | 15.54 (1-41) | 0.002 |
| ≥ 14 | 20.22 (0-47) | |