Table 1 Clinical characteristics of the initial population
Characteristics | Number of patients (%) |
|---|---|
Age | |
  < 50 years | 34 (31.2%) |
  ≥ 50 years | 75 (68.8%) |
T stage | |
 T1 | 91 (83.5%) |
 T2 | 18 (16.5%) |
Grade | |
 I | 2 (1.8%) |
 II | 68 (62.4%) |
 III | 39 (35.8%) |
Histology | |
 Ductal carcinoma | 99 (90.8%) |
 Lobular carcinoma | 3 (2.8%) |
 Papillary carcinoma | 5 (4.6%) |
 Mucinous adenocarcinoma | 2 (1.8%) |
ER/PR status | |
 ER positive and/or PR positive | 85 (78.0%) |
 ER and PR negative | 24 (22.0%) |
Her2 status | |
 Positive | 20 (18.3%) |
 Negative | 89 (81.7%) |
Subtype | |
 Luminal A/B (Her2-negative) | 78 (71.6%) |
 Her2-enriched | 20 (18.3%) |
 Triple-negative | 11 (10.1%) |
Pathological N status | |
 Negative | 87 (79.8%) |
 Positive | 22 (20.2%) |
  ≥ 2 positive nodes | 5 (4.6%) |
Surgical management | |
 Mastectomy | 86 (78.9%) |
 Breast-conserving surgery | 23 (21.1%) |
Method of diagnosis | |
 Core needle biopsy | 74 (67.9%) |
 Excision biopsya | 35 (32.1%) |