Transient increase in the risk of breast cancer after giving birth.

@article{Lambe1994TransientII,
  title={Transient increase in the risk of breast cancer after giving birth.},
  author={Mats Lambe and Chester Chen-Yu Hsieh and Dimitirios Trichopoulos and Anders Ekbom and Maria Pavia and H. O. Adami},
  journal={The New England journal of medicine},
  year={1994},
  volume={331 1},
  pages={5-9}
}
BACKGROUND The effect of pregnancy on the risk of breast cancer is not clear. We tested the hypothesis that the risk of breast cancer increases transiently after pregnancy but then falls to a level below that of age-matched nulliparous women. METHODS We conducted a case-control study of a nationwide cohort in Sweden, using a computerized record linkage between the Cancer Registry and the Fertility Registry. The study subjects were women born from 1925 through 1960 who were resident citizens… CONTINUE READING
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