Table 1 Patient characteristics.
Characteristics | Mean ± SD | N | % |
|---|---|---|---|
Age, years | 60.7 ± 12.4 | 200 | 100 |
< 40 | 11 | 5.5 | |
40 ≤ age < 50 | 27 | 13.5 | |
50 ≤ age < 60 | 48 | 24.0 | |
60 ≤ age < 70 | 61 | 30.5 | |
70 ≤ age < 80 | 42 | 21.0 | |
> 80 | 11 | 5.5 | |
Body mass index, kg/m2 | 26.9 ± 5.6 | ||
< 20 | 9 | 4.5 | |
20 ≤ BMI < 25 | 63 | 31.5 | |
25 ≤ BMI < 30 | 77 | 38.5 | |
30 ≤ BMI < 35 | 36 | 18.0 | |
≥ 35 | 15 | 7.5 | |
Breast density | |||
A | 10 | 5 | |
B | 131 | 65.5 | |
C | 56 | 28 | |
D | 3 | 1.5 | |
Preexisting cancer | – | 22 | 11.0 |
Preoperative MRI | – | 74 | 37.0 |
Neoadjuvant chemotherapy | – | 36 | 19.7 |
