Table 1 Patient baseline characteristics (n = 1,032)
Characteristics | n | % |
|---|---|---|
Age (y) | Â | Â |
≤35 | 110 | 10.7 |
36–50 | 527 | 51.1 |
>50 | 395 | 38.3 |
cT stage | Â | Â |
T1 | 575 | 55.7 |
T2 | 398 | 38.5 |
Tx | 59 | 5.7 |
pT stage | Â | Â |
T1 | 658 | 63.8 |
T2 | 271 | 26.2 |
Tx | 103 | 10.0 |
pN stage | Â | Â |
N0 | 736 | 71.3 |
N1 | 209 | 20.3 |
N2 | 50 | 4.8 |
N3 | 30 | 3.9 |
Unknown | 7 | 0.7 |
Grade | Â | Â |
G1 | 83 | 8.1 |
G2 | 590 | 57.4 |
G3 | 354 | 34.5 |
Menopausal status | Â | Â |
Pre- | 652 | 63.2 |
Post- | 379 | 36.8 |
Margin status | Â | Â |
Negative | 823 | 79.7 |
Carcinoma in situ | 87 | 8.4 |
Invasive carcinoma | 122 | 11.8 |
Presence of LVI | 114 | 11.9 |
Presence of EIC | 102 | 9.9 |
ER or PR positive | 826 | 80.0 |
HER-2 positive | 216 | 12.0 |
Histological subtype | Â | Â |
Invasive ductal carcinoma | 805 | 78.0 |
Presence of DCIS component | 83 | 8.0 |
Invasive lobular carcinoma | 29 | 2.8 |
Other | 115 | 11.2 |
Breast cancer subtype | Â | Â |
Luminal A | 540 | 52.3 |
Luminal B | 154 | 14.9 |
Luminal-HER-2 | 132 | 12.8 |
HER-2 positive | 84 | 8.1 |
TN | 122 | 11.8 |