Intended for healthcare professionals

Letters Breast screening

Breast screening saves lives

BMJ 2009; 339 doi: (Published 21 July 2009) Cite this as: BMJ 2009;339:b2922
  1. Nicholas J Wald, professor1,
  2. Malcolm R Law, professor1,
  3. Stephen W Duffy, professor1
  1. 1Wolfson Institute of Preventive Medicine, Barts and the London School of Medicine and Dentistry, London EC1M 6BQ
  1. n.j.wald{at}

    Godlee concludes incorrectly that our silence implies assent to Gøtzsche and colleagues’ views on the magnitude of the effect of mammographic screening in reducing breast cancer mortality.1 2 3 4

    In 1993 a meta-analysis of randomised trials showed a 24% reduction in breast cancer mortality among all women aged 50-74 invited for screening,5 a result that has been generally accepted. This intention …

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