Mammography reduces risk of breast cancer death by 28%, study finds

BMJ 2014; 348 doi: (Published 18 June 2014) Cite this as: BMJ 2014;348:g4062
  1. Zosia Kmietowicz
  1. 1The BMJ

A study of the impact of a breast screening programme in Norway has found that in every 10 000 women invited for mammography about 27 deaths from breast cancer might be avoided during their lifetime, giving a 28% lower risk of death among women who were screened.1

Commentators said in an editorial that the study largely confirmed what was already known—that the benefits of breast screening “are modest at best.”2 They called for women to be given balanced information including the screening harms of overdiagnosis, psychological stress, and high healthcare costs.

Randomised trials from …

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