Hypertensive diseases in pregnancy and breast cancer risk

  title={Hypertensive diseases in pregnancy and breast cancer risk},
  author={Signe Opdahl and Pal Richard R Romundstad and Mirjam D. K. Alsaker and Lars J Vatten},
  booktitle={British Journal of Cancer},
Background:Hypertensive diseases in pregnancy may be associated with a reduced risk of breast cancer. Most previous studies are small and have shown conflicting results.Methods:In a cohort of 919 712 women who gave their first birth between 1967 and 2008, with linkage of information from two national registries, we assessed whether women with pregnancy hypertensive diseases are at reduced breast cancer risk. We used Cox regression to estimate hazard ratios (HRs) with 95% confidence intervals… CONTINUE READING
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