What is the effect of oral contraceptive use on a women's risk for breast cancer?

Updated: Dec 26, 2019
  • Author: Graham A Colditz, MD, DrPH; Chief Editor: Chandandeep Nagi, MD  more...
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In several meta-analyses and a large pooled analysis, [38] “ever” use of oral contraceptives was not associated with breast cancer risk. Although this finding is reassuring, defining oral contraceptive use this way is misleading because women in the "ever" use category is a mix of women with long- and short-term use, so that any true relationship with one particular aspect of oral contraceptive use may be missed.

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