Table 1.
Clinical and pathological characteristic of the breast cancer patients
| Characteristics | Disease-Free Breast Cancer Group | Metastatic Breast Cancer Group |
|---|---|---|
| Histological type | ||
| Invasive ductal carcinoma | 63 (81.8%) | 22 (64.7%) |
| Invasive lobular carcinoma | 8 (10.4%) | 6 (17.6%) |
| Other invasive carcinoma | 6 (7.8%) | 4 (11.4%) |
| Unknown | 0 | 2 (5.8%) |
| Histological grade | ||
| Grade I | 17 (22.1%) | 1 (2.9%) |
| Grade II | 25 (32.5%) | 8 (23.5%) |
| Grade III | 26 (33.8%) | 20 (58.8%) |
| Unknown | 9 (11.7%) | 5 (14.7%) |
| Tumor size | ||
| Tis | 2 (2.6%) | 1 (2.9%) |
| T1 | 40 (52.0%) | 10 (29.4%) |
| T2 | 24 (31.2%) | 13 (38.2%) |
| T3 | 7 (9.1%) | 5 (14.7%) |
| T4 | 4 (5.2%) | 2 (5.8%) |
| Tx | 0 | 1 (2.9%) |
| Unknown | 2 (5.8%) | |
| Node involvement | ||
| N0 | 41 (53.3%) | 13 (38.2%) |
| N1 | 26 (33.8%) | 8 (23.5%) |
| N2 | 6 (7.8%) | 9 (26.4%) |
| N3 | 3 (3.9%) | 2 (5.8%) |
| Nx | 1 (1.3%) | 2 (5.8%) |
| Estrogen receptor status | ||
| Negative | 20 (25.1%) | 10 (27.7%) |
| Positive | 53 (68.8%) | 21 (61.7%) |
| Unknown | 4 (5.2%) | 3 (8.8%) |
| Progesterone receptor status | ||
| Negative | 23 (30.0%) | 10 (29.4%) |
| Positive | 50 (64.9%) | 22 (64.7%) |
| Unknown | 4 (5.1%) | 2 (5.8%) |
| Menopause | ||
| Yes | 46 (62.3%) | 31 (91.1%) |
| No | 26 (33.8%) | |
| Unknown | 3 (3.9%) | 3 (8.8%) |