Table 6 Effect of 1 cm³ increase in breast volume after PSM on breast cancer risk

Age

0.471

1

0.492

BMI

0.302

1

0.583

Menarche age

0.206

1

0.650

Age at first pregnancy

0.214

1

0.644

Number of pregnancies

0.011

1

0.918

Feeding mode

< 0.001

1

1.000

Proliferative benign breast disease

0.111

1

0.739

Oral contraceptives

0.571

1

0.450

Smoking

–

0

–

Alcohol consumption

1.316

1

0.251

History of hyperthyroidism

1.800

1

0.180

Family history

1.600

1

0.206

BREAST-V

0.581

1

0.446