Cancer Weekly
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Breast Cancer
The potency of oral contraceptives influences risk among younger women
April 22nd, 2003
The potency of estrogen in oral contraceptives appears to be linked to increased risk of breast cancer. "Recent use of oral contraceptive pills is associated with a modest risk of breast cancer among very young women. In this U.S. population-based case control study, we evaluated whether the excess risk associated with recent oral contraceptive use is ubiquitous for all pill types or attributable to specific oral contraceptive preparations. "Hormonal content and potency of combination oral contraceptives used for the longest duration within 5 years of interview for breast cancer cases aged 20-44 years (n=1640) were compared with age matched...
Source: Cancer Weekly (2003-04-22)
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