Table 1 Clinical characteristics of total patients

Age, years (± SD)

54 ± 12

Gender

 Female

256 (99.2)

 Male

2 (0.8)

BMI

24.1 (22.0–26.4)

Menopausal status^a

 Postmenopausal

152 (59.4)

 Premenopausal

101 (39.5)

 Unknown

3 (1.1)

Relatives with BC

 Present

24 (9.3)

 Absent

234 (90.7)

Tumor focality

 Single focal BC

245 (95.0)

 Unilateral double focal BC

6 (2.3)

 Bilateral BC

7 (2.7)

Stage at BC diagnosis

 stage I-III

231(89.5)

 Stage IV

27 (10.5)

Treatment for stage I-III BC

 Adjuvant

188 (72.9)

 Neoadjuvant

135 (52.3)

 Operation

231 (89.5)