Table 1. Patients Characteristics in Primary Breast Cancer.
| Variables | All cases | |
|---|---|---|
| No. of cases | 4329 | |
| Age (mean / median) | 55.8 / 54 | |
| Ki-67 (mean / median) | 26.2/ 20.5 | |
| Menopausal status | pre | 1801(41.6%) |
| post | 2520(58.2%) | |
| unknown | 8(0.2%) | |
| Nuclear grade | 1or 2 | 3185(73.6%) |
| 3 | 631(14.6%) | |
| unknown | 513(11.8%) | |
| Tumor size (mm) | <20 | 2417 (55.8%) |
| ≥20 | 1754 (40.5%) | |
| unknown | 158(3.7%) | |
| p53 expression | <50% | 2828 (5.3%) |
| ≥50% | 728 (16.8%) | |
| unknown | 773(17.9%) | |
| Lymph node metastasis | - | 2795 (64.6%) |
| + | 1454 (33.6%) | |
| unknown | 80(1.8%) | |
| ER | <1% | 497 (11.5%) |
| ≥1% | 3832(88.5%) | |
| PgR | <1% | 757 (17.5%) |
| ≥1% | 2632(60.8%) | |
| unknown | 940(21.7%) | |
| Surgical method | Total mastectomy | 2018 (46.6%) |
| Partial mastectomy | 2259 (52.2%) | |
| unknown | 52 (1.2%) | |
| Adjuvant therapy | Endocrine therapy alone | 1907 (44.1%) |
| Chemotherapy alone | 636 (14.7%) | |
| Chemo-endocrine therapy | 1123 (25.9%) | |
| Trastuzumab therapy | 104 (2.4%) | |
| none | 525(12.1%) | |
| unknown | 34 (0.8%) | |