Mean tumour size (mm) ± SD | 32 ± 18 | |
---|---|---|
Mean age at diagnosis (years) ± SD | 64 ± 14 | |
 | Number | Percentage |
(n) | (%) | |
Tumour stage | ||
 pT1 | 236 | 23.8 |
 pT2 | 541 | 54.6 |
 pT3 | 85 | 8.6 |
 pT4 | 127 | 12.8 |
 NA | 1 | 0.2 |
Lymph node involvement | ||
 pN0 | 508 | 51.3 |
 pN1 | 370 | 37.4 |
 pN2 | 98 | 9.9 |
 pN3 | 8 | 0.8 |
 NA | 6 | 0.6 |
Tumour grade | ||
 1 | 206 | 20.8 |
 2 | 354 | 35.8 |
 3 | 429 | 43.3 |
 NA | 1 | 0.1 |
Histologic subtype | ||
 Invasive ductal | 739 | 74.6 |
 Invasive lobular | 107 | 10.8 |
 Mucinous | 25 | 2.5 |
 Apocrine | 19 | 1.9 |
 Cribriform | 32 | 3.2 |
 Others | 65 | 6.6 |
 NA | 3 | 0.4 |
Intrinsic subtype | ||
 Luminal A-like (ER+and/or PR+, HER2−, Ki-67 < 14%) | 124 | 12.5 |
 Luminal B-like (HER2-negative) (ER+and/or PR+, HER2−, Ki-67 ≥ 14%) | 435 | 43.9 |
 Luminal B-like (HER2-positive) (ER+and/or PR+, HER2+) | 90 | 9.1 |
 HER2 type (ER−, PR−, HER2+) | 77 | 7.8 |
 Basal-like (ER−, PR−, HER2−) | 260 | 26.3 |
 NA | 4 | 0.4 |