Menstrual Cycle Characteristics and History of Ovulatory Infertility in Relation to Breast Cancer Risk in a Large Cohort of US Women
Garland M, Hunter D, Colditz G, Manson J, Stampfer M, Spiegelman D, Speizer F, Willett W. Menstrual Cycle Characteristics and History of Ovulatory Infertility in Relation to Breast Cancer Risk in a Large Cohort of US Women. American Journal Of Epidemiology 1998, 147: 636-643. PMID: 9554602, DOI: 10.1093/oxfordjournals.aje.a009504.Peer-Reviewed Original ResearchConceptsMultivariate relative riskHealth Study IIMenstrual cycle characteristicsBreast cancer riskRelative riskOvulatory infertilityBreast cancerCancer riskLonger menstrual cycle lengthNurses' Health Study IICycle lengthUsual cycle lengthProspective cohort studyMenstrual cycle lengthOvulatory menstrual cyclesCohort studyBaseline questionnaireMenstrual cycleLarge cohortProtective effectUS womenAge 18Study IIInfertilityCycle characteristics