Plasma Sex Steroid Hormone Levels and Risk of Breast Cancer in Postmenopausal Women
Hankinson S, Willett W, Manson J, Colditz G, Hunter D, Spiegelman D, Barbieri R, Speizer F. Plasma Sex Steroid Hormone Levels and Risk of Breast Cancer in Postmenopausal Women. Journal Of The National Cancer Institute 1998, 90: 1292-1299. PMID: 9731736, DOI: 10.1093/jnci/90.17.1292.Peer-Reviewed Original ResearchConceptsSex steroid hormone levelsHormone replacement therapyBreast cancer riskPostmenopausal womenBreast cancerSteroid hormone levelsBlood collectionEstrogen levelsReplacement therapyHormone levelsCancer riskHealth StudyPrevious hormone replacement therapyPlasma sex steroid hormone levelsPostmenopausal estrogen levelsNurses' Health StudyPlasma estrogen levelsLevels of estradiolCase-control studyPlasma androgen levelsBioavailable estradiolMenopausal statusSignificant positive associationControl subjectsLowest quartile