Familial risk of breast cancer by dynamic, accumulative, and static definitions of family history
Published 29 July 2020 The authors assessed the effect of incorporating the timing of cancer diagnosis events into the assessment of familial risks of breast cancer in first‐degree and second‐degree relatives in a nationwide cohort study of 5,099,172 women (follow‐up was between 1958‐2015). Family history was assessed using 3 approaches: 1) as a static variable (ever having a relative with breast