Changes to This Summary (04/05/2013)
The PDQ cancer information summaries are reviewed regularly and updated as new information becomes available. This section describes the latest changes made to this summary as of the date above.
Added text about a detailed analysis of Swedish women by county that compared breast cancer mortality in the presence and absence of screening mammography and concluded that screening had little impact on breast cancer mortality (cited Autier et al. as reference 14).
Added text to state that the approach of applying both digital and screen-film mammography to individuals in a single arm study may yield a biased estimate of the relative sensitivity of the tests and that an alternative design would randomize individuals to two arms with each test performed in only one arm, comparing the interval cancer rates in the two arms.
Added Anxiety as a new subsection.
This summary is written and maintained by the PDQ Screening and Prevention Editorial Board, which is editorially independent of NCI. The summary reflects an independent review of the literature and does not represent a policy statement of NCI or NIH. More information about summary policies and the role of the PDQ Editorial Boards in maintaining the PDQ summaries can be found on the About This PDQ Summary and PDQ NCI's Comprehensive Cancer Database pages.