Table 1 Summary of Demographic Characteristics
Characteristic | Number |
|---|---|
No. of Participants | 120 |
Age, Mean ± SD, years (Range) | 53.3 ± 9.9 years (range, 32 ~ 87 years) |
Menstruation State | |
 Premenopausal women | 34 |
 Postmenopausal women | 69 |
 Perimenopausal women | 17 |
 Tumor size, Mean ± SD, cm | 2.96 ± 1.38 cm |
Tumor size | |
  ≤ 2 cm | 32 |
  > 2 cm | 88 |
ER | |
 positive | 86 |
 negative | 34 |
PR | |
 positive | 53 |
 negative | 67 |
HER2 | |
 positive | 47 |
 negative | 73 |
Ki67 | |
 low-proliferation | 70 |
 high-proliferation | 50 |