title: Expression of risk factors for breast cancer in women younger than 49.
abstract: The definition of women younger than 49 who are at increased risk for breast cancer would enable intensified efforts in surveillance and use of preventive measures for this group. In this survey of 32,123 members of Health Net, an increased risk for breast cancer was related to age, breast cancer in the immediate family (mother, sister), and previous biopsies for cystic lesions of the breast. No increased risk was related to menarche, nulliparity, first pregnancy after age 30, or breast feeding.
authors: Department of Radiation Oncology, University of California at Los Angeles School of Medicine, USA.
authors: R G
authors: RG
authors: Parker
authors: K
authors: K
authors: Rees
authors: K M
authors: KM
authors: Leung
authors: A P
authors: AP
authors: Legorreta
mesh_terms: D000328:Adult; D000367:Age Factors; D001943:Breast Neoplasms / Q000453:epidemiology* / Q000517:prevention & control; D005260:Female; D006801:Humans; D008875:Middle Aged; D011159:Population Surveillance; D012307:Risk Factors