Weight, weight gain and behavioural risk factors in women attending a breast cancer family history, risk and prevention clinic: an observational study.

Background: Weight and health behaviours impact on breast cancer risk. We describe trends in weight and health behaviours in women at entry to a specialist breast cancer family history clinic in Manchester, UK, and changes after clinic entry.

Methods: Questionnaires were completed at clinic entry (1987-2019, n = 10,920), and updated in 2010-11 (n = 3283).