title: Conjugated estrogens and fibrocystic breast disease.
abstract: The association between replacement estrogen use and subsequent development of fibrocystic breast disease was studied at Group Health Cooperative of Puget Sound. Included were 142 women aged 50-64 years diagnosed by biopsy as having fibrocystic breast disease during the years 1978 through 1983. The relative incidence of hospitalization for estrogen users compared with non-users was 1.9 (95% confidence interval 1.3-2.7). The association became stronger with increasing duration of estrogen use.
mesh_terms: D004966:Estrogens, Conjugated (USP) / Q000009:adverse effects*; D005260:Female; D005348:Fibrocystic Breast Disease / Q000139:chemically induced*; D006801:Humans; D008875:Middle Aged; D011336:Probability; D012306:Risk; D013997:Time Factors
chemical_list: D004966:Estrogens, Conjugated (USP)