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Patient characteristics.
| Healthy control | Breast cancer | |
|---|---|---|
| Female (total N) | 192 | 96 |
| Age (year) | 51.8 ± 10.1 | 51.5 ± 11.1 |
| Pathologic feature, N (%) | ||
| Tumor size | ||
| Tis | 3 (3.1) | |
| T1 | 54 (56.2) | |
| T2 | 35 (36.4) | |
| T3 | 4 (4.1) | |
| Clinical node status | ||
| N0 | 64 (66.6) | |
| N1 | 22 (22.9) | |
| N2 | 7 (7.2) | |
| N3 | 3 (3.1) | |
| Tumor grade | ||
| G1 | 1 (1.0) | |
| G2 | 50 (52.0) | |
| G3 | 45 (46.8) | |
| Ki67 | ||
| ˂ 20% | 45 (46.8) | |
| ≥ 20% | 51 (56.2) | |
| Clinical stage | ||
| 0 | 3 (3.1) | |
| I | 44 (45.8) | |
| II | 36 (37.5) | |
| III | 13 (13.5) | |
