Mammography’s efficacy in reducing death ignites debate

The research involved 89,835 women aged 40—59 years who were assigned to two groups.

The first received annual mammograms and physical breast examinations between the years 1980 and 1985. In the control group, women aged 50—59 received annual physical exams, while women aged 40—49 received a single examination followed by usual care.

During the five-year screening period, 666 invasive breast cancers were diagnosed in the mammography arm and 524 in the control group. Of these, 180 women in the mammography arm and 171 in

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