title: Risk factors in breast cancer.
abstract: Risk factors are identified in less than 25 per cent of women who develop invasive breast cancer. The risk factors include a family history of breast cancer in a first degree family relative, late menopause, nulliparity, a first full term pregnancy after the age of 35 years, increasing age, P2 and DY mammographic parenchymal patterns, increasing dosage of non contraceptive oestrogens, mammary dysplasia associated with epithelial proliferation, a previous invasive breast carcinoma and carcinoma in situ.
authors.affiliation: Monash University, Alfred Hospital, Prahran, Victoria.
authors.forename: F
authors.initials: F
authors.lastname: McDermott
mesh_terms: D001943:Breast Neoplasms / Q000453:epidemiology* / Q000209:etiology / Q000517:prevention & control; D005260:Female; D006801:Humans; D015994:Incidence; D008403:Mass Screening; D012307:Risk Factors