Model of outcomes of screening mammography: Spontaneous regression of breast cancer may not be uncommon

BMJ 2005; 331 doi: http://dx.doi.org/10.1136/bmj.331.7512.350-a (Published 4 August 2005)
Cite this as: BMJ 2005;331:350.2

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  1. Per-Henrik Zahl, senior statistician (per-henrik.zahl@fhi.no),
  2. Jan Mæhlen, professor
  1. Norwegian Institute of Public Health, PO Box 4404 Nydalen, N-0403, Oslo, Norway
  2. Department of Pathology, Ullevål University Hospital, N-0407 Oslo, Norway

    EDITOR—The model of outcomes of screening mammography by Barratt et al proposes that more breast cancer is diagnosed among screened than unscreened women.1 The model predicts about 40% higher cumulative incidence in women screened biennially during a 10 year observation period.

    Two important underlying assumptions in mammography screening are that the …

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