- Women are likely to experience substantial weight gain after a diagnosis of breast cancer or ductal carcinoma in situ, and many are highly concerned about their weight.
Why this matters
- Weight gain after breast cancer may result in poorer outcomes, and efforts to prevent and manage it must be prioritized, especially during the first year after diagnosis.
- 309 women ages 35-74 years from the Breast Cancer Network Australia Review and Survey Group completed a cross-sectional survey.
- Pre-/postdiagnosis weight data were available for 277 women and BMI for 270 women.
- Funding: None.
- 63.7% of women gained an average of 9.07 kg after diagnosis, and 17.0% gained >20 kg.
- During the 2-year postdiagnosis period, the rate of overweight and obesity increased from 48% to 67%.
- Rate of obesity alone increased from 17% to 32%.
- Among all age groups, 69.1% of women gained 0.48 kg more weight per year than age-matched control respondents.
- High concerns regarding weight gain were reported by:
- 54.8% of women who gained 5%-10% of their diagnosis weight.
- 78.4% of women who gained >10%.
- Self-reported data.
- Most respondents were white, so generalizability to other ethnicities is unknown.