Familial risk of breast cancer by dynamic, accumulative, and static definitions of family history
Background: Familial breast cancer risk studies usually overlook the dynamic nature of family history. Methods: 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
