Article Abstract

More misinformation on breast cancer screening

Authors: Daniel B. Kopans


There are now three papers denigrating the value of mammography screening that should have never passed peer review, but have been published in the prestigious New England Journal of Medicine (NEJM) (1-3). The papers falsely claimed that mammography has had little effect on breast cancer in the U.S. while also falsely claiming that mammography screening was leading to massive “overdiagnosis” of breast cancers that would have regressed or disappeared had they not been detected by screening. They are all based on scientifically unsupportable estimates as to what the incidence of breast cancer would have been had screening not begun in the United States in the mid 1980’s.