Table 1 Basic characteristics of the enrolled patients
Variables | No. (%) |
|---|---|
Age (years) | |
  ≤ 50 | 77 (53) |
  > 50 | 68 (47) |
Pathologic T stage | |
 1 | 50 (35) |
 2–4 | 95 (65) |
Pathologic N stage | |
 0 | 54 (37) |
 1–3 | 91 (63) |
Histologic grade | |
 1–2 | 92 (64) |
 3 | 53 (36) |
Lymphovascular invasion | |
 Absent | 86 (59) |
 Present | 59 (41) |
Type of surgery | |
 Breast conserving surgery | 35 (24) |
 Mastectomy | 110 (76) |
Estrogen receptor | |
 Negative | 64 (44) |
 Positive | 81 (56) |
Progesterone receptor | |
 Negative | 87 (60) |
 Positive | 58 (40) |
HER2 | |
 Negative | 108 (75) |
 Positive | 37 (25) |
Chemotherapy | |
 Neoadjuvant | 44 (30) |
 Adjuvant | 95 (66) |
 No | 6 (4) |
Adjuvant radiotherapy | |
 No | 81 (56) |
 Yes | 64 (44) |