EBRO 2017

Lifestyle factors which might be modified to reduce breast cancer incidence in the UK

% of breast cancers attributable to lifestyle risk factor that might be modified

Factor

Alcohol

6

Overweight and obesity

9

Physical exercise

3

Post-menopausal hormones

3

Ionizing radiation

1

Occupation

5

Reproduction (breast-feeding)

3

Total

27

This is the theoretical maximum amount. Realistically, not all this could be achieved.

So lifestyle changes can only make a modest contribution to reduction in breast cancer.

Parkin et al Br J Cancer 2011;105(S2):S77-S81