Table 1 Demographic and clinical characteristics
Variables | No. of patients (n = 683) (%) |
|---|---|
Sex | Â |
   M | 1 (0.1) |
   F | 682 (99.9) |
Age (years) | Â |
   Median (range) | 47 (22–84) |
   <35 | 51 (7.5) |
   ≥35 | 632 (92.5) |
Type of surgery | Â |
   BCS | 284 (41.6) |
   Mastectomy | 399 (58.4) |
Histology | Â |
   Invasive ductal carcinoma | 605 (88.5) |
   Invasive mucinous carcinoma | 23 (3.4) |
   Invasive papillary carcinoma | 17 (2.5) |
   Invasive lobular carcinoma | 8 (1.2) |
   Metaplastic carcinoma | 7 (1.0) |
   Medullary carcinoma | 5 (0.7) |
   Tubular carcinoma | 5 (0.7) |
   Invasive cribiriform carcinoma | 5 (0.7) |
   Invasive micropapillary carcinoma | 3 (0.4) |
   Mixed invasive lobular and ductal carcinoma | 3 (0.4) |
   Invasive apocrine carcinoma | 2 (0.3) |
Pathological tumor size | Â |
   <2 cm | 399 (58.5) |
   ≥2 cm | 284 (41.5) |
Adjuvant chemotherapy | Â |
   None | 262 (38.4) |
   Yes | 418 (61.2) |
   Unknown | 3 (0.4) |