Table 1 Clinico-pathological features of “Triple Negative” breast cancer
Variables | TNBC n (%) (n = 1009) n (%) |
|---|---|
Age | |
< 35 | 47 (4.7) |
35–49 | 263 (26.1) |
50–69 | 503 (49.9) |
70+ | 195 (19.3) |
Missing | 1 |
Site | |
Right | 429 (48.6) |
Left | 447 (50.7) |
Bilateral | 6 (0.7) |
Missing | 127 |
Histologic type | |
IBC-NST | 745 (78.1) |
Lobular | 62 (6.5) |
Mucinous | 2 (0.2) |
Medullary | 39 (4.1) |
Mixed IBC-NST and invasive lobular | 7 (0.7) |
Apocrine | 43 (4.5) |
Papillary | 7 (0.7) |
Adenoid cystic | 6 (0.6) |
Metaplastic | 42 (4.4) |
Micropapillary | 2 (0.2) |
Missing | 54 |
Histologic grade | |
G1 | 11 (1.1) |
G2 | 204 (21.3) |
G3 | 744 (77.6) |
Missing | 50 |
Tumor size | |
pT0 | 1 (0.1) |
pT1 | 379 (40.6) |
pT2 | 441 (47.3) |
pT3 | 59 (6.3) |
pT4 | 53 (5.7) |
Missing | 76 |
Lymph node status | |
pN0 | 533 (59.4) |
pN1 | 214 (23.9) |
pN2 | 90 (10.0) |
pN3 | 60 (6.7) |
Missing | 112 |
Metastasis | |
M0 | 812 (95.8)) |
M1 | 36 (4.2 |
Missing | 161 |
TNM stage | |
I | 258 (29.1) |
II | 413 (46.5) |
III | 182 (20.5) |
IV | 35 (3.9) |
Missing | 121 |
Lymph node ratio | |
< 0,2 | 717 (81.4) |
0,21-0,65 | 103 (11.7) |
> 0,65 | 61 (6.9) |
Missing | 128 |
Lymphovascular invasion | |
yes | 349 (45.0) |
no | 427 (55.0) |
Missing | 233 |
Necrosis | |
Present | 491 (61.0) |
Absent | 314 (39.0) |
Missing | 184 |
Lymphocytic infiltrate | |
yes | 504 (64.5) |
no | 278 (35.5) |
Missing | 227 |
Proliferation index (Ki-67) | |
< 14% | 94 (9.9) |
15–30% | 155 (16.4) |
≥ 30% | 698 (73.7) |
Missing | 62 |
Androgen Receptor | |
Positive | 125 (24.3) |
Negative | 389 (75.7) |
Missing | 495 |
Type of surgery | |
Mastectomy | 341 (42.2) |
Quadrantectomy | 451 (55.5) |
Lumpectomy | 17 (2.0) |
Missing | 200 |
Adjuvant chemotherapy | |
yes | 580 (57.5) |
no | 429 (42.5) |
Adjuvant radiotherapy | |
yes | 364 (36.1) |
no | 645 (63.9) |
Recurrence | |
yes | 67 (6.6) |
no | 942 (93.4) |
Contralateral breast cancer | |
yes | 69 (6.8) |
no | 940 (93.2) |