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Early periods and late childbearing increase risk of breast cancer, study confirms

BMJ 2002; 324 doi: (Published 16 February 2002) Cite this as: BMJ 2002;324:386
  1. Lynn Eaton
  1. BMJ

    Women's risk of getting breast cancer increases if they have few children, start to have children late, or if their periods start early, a large scale French study has confirmed.

    The study, published this week on the website of the British Journal of Cancer (, followed nearly 100 000 French women over a 10 year period. They were aged 40-65 at the start of the study. All were with a national health insurance scheme and were mainly teachers. The women were sent follow up questionnaires every two years …

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