A Follow-up of a National Cohort of Breast Disease Factors Affecting the Development of Breast Cancer.
Final rept. 1 Sep 94-31 Aug 96,
CHAIM SHEBA MEDICAL CENTER TEL HASHOMER(ISRAEL) DEPT OF CLINICAL EPIDEMIOLOGY
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The study is based on a twelve-year follow-up of the cohort of 3500 women histologically diagnosed nationwide for benign and malignant breast lesions, between July 1979 and June 1980. A particular feature of the study population is that it stems from a single community but comprises subgroups with varying BC incidence high risk women born in Europe, America and Israel, and low risk women originating from the Middle East and North Africa. The age-adjusted BC incidence rates of these groups in the late 1980s were 87.0 and 57.2 per 100,000 respectively, a gradient similar to the one observed between US whites and Africans. This study offers a unique opportunity to evaluate the progression of benign and malignant breast disease on a whole community base population.
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