The Independent UK Panel on Breast Cancer Screening1 concludes that information should be made available transparently to women invited to screening, to allow informed decisions. The conclusion: "for every 10000 UK women aged 50 years invited to screening for the next 20 years, 43 deaths from breast cancer would be prevented and 129 cases over-diagnosed" is midway between the estimates of the Cochrane review2 (ten cases of overdiagnosis for each breast cancer death avoided) and of the Euroscreen Working Group3 (seven to nine lives saved for every four cases overdiagnosed).
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