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Exogenous estrogens and breast cancer in women with natural menopause
Journal of the National Cancer Institute
|April 1, 1976
Abstract:
Age, age at menopause, and calendar year at menopause were controlled as factors related to estrogen use. Data on 90 breast cancer patients and 83 conrols--all of whom had a natural menopause--showed no relationship between breast cancer and estrogen usage after the start of menopause symptoms.
Keywords:
Age FactorsBreast CancerCancerContraceptionContraceptive Agents, Estrogen--side effectsContraceptive Agents, Estrogen--therapeutic useContraceptive Agents, Female--side effectsContraceptive Agents, Female--therapeutic useContraceptive Agents--side effectsContraceptive Agents--therapeutic useCorrelation StudiesDemographic FactorsDiseasesFamily PlanningMenopauseNeoplasmsPopulationPopulation CharacteristicsReproductionResearch MethodologyStatistical StudiesStudies