Table 1.
Patient characteristics
| Variables | N (%) |
|---|---|
| Age groups (years) | |
| ≤ 40 | 15 (18) |
| 41–50 | 18 (22) |
| 51–60 | 17 (20) |
| 61–70 | 15 (18) |
| ≥ 70 | 18 (22) |
| Pathologic T-stage | |
| pT1a | 4 (5) |
| pT1b | 23 (28) |
| pT1c | 43 (51) |
| pT2 | 13 (16) |
| Nottingham grading system | |
| NHG 1 | 20 (24) |
| NHG 2 | 38 (46) |
| NHG 3 | 25 (30) |
| ER status | |
| Negative | 14 (17) |
| Positive | 66 (79) |
| Missing data | 3 (4) |
| PR status | |
| Negative | 23 (28) |
| Positive | 58 (70) |
| Missing data | 2 (2) |
| HER2 status | |
| Negative | 73 (88) |
| Positive | 6 (7) |
| Missing data | 4 (5) |
| Proliferation index | |
| Ki-67 < 14% | 46 (55) |
| Ki-67 ≥ 14% | 32 (39) |
| Missing data | 5 (6) |
| Postoperative radiotherapy | |
| No | 42 (51) |
| Yes | 41 (49) |
| Local recurrence | |
| No | 44 (53) |
| Yes | 39 (47) |
| CD163-expression in breast cancer cells | |
| Negative (< 15%) | 64 (77) |
| Positive (≥ 15%) | 17 (21) |
| Missing data | 2 (2) |
| Macrophage infiltration | |
| No/low | 41 (49) |
| Moderate | 28 (34) |
| High | 12 (15) |
| Missing data | 2 (2) |