The impact of body size changes on recurrence risk depends on age and estrogen receptor status in primary breast cancer

To investigate the prognostic impact of body size changes during the first postoperative year in breast cancer.A cohort of 1,317 primary breast cancer patients included in Sweden (2002-2014) underwent body size measurements at the preoperative and 1-year visits (n = 1,178). Landmark survival analyses were used to investigate how postoperative weight gain or loss (> 5%) or change in waist-hip ratio (WHR) categories (≤ 0.85 or > 0.85) impact...