Longitudinal patterns and associated factors of postdiagnosis weight changes in Korean breast cancer survivors with normal body mass index.

Korean breast cancer survivors treated with CT mainly experienced postdiagnosis weight loss rather than weight gain. Short-term weight change was independently associated with chemotherapy and educational level. However, long-term weight change was associated with age at diagnosis. Breast cancer survivors with normal BMI may be categorized according to the time-dependent risk for postdiagnosis weight change.