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    Effect of false-positive screening mammograms on rescreening in Western Australia

    Access Status
    Fulltext not available
    Authors
    Sim, M.
    Siva, S.
    Ramli, I.
    Fritschi, Lin
    Tresham, J.
    Wylie, E.
    Date
    2012
    Type
    Journal Article
    
    Metadata
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    Citation
    Sim, M. and Siva, S. and Ramli, I. and Fritschi, L. and Tresham, J. and Wylie, E. 2012. Effect of false-positive screening mammograms on rescreening in Western Australia. Medical Journal of Australia. 196 (11): pp. 693-695.
    Source Title
    Medical Journal of Australia
    DOI
    10.5694/mja11.10892
    ISSN
    0025-729X
    URI
    http://hdl.handle.net/20.500.11937/39073
    Collection
    • Curtin Research Publications
    Abstract

    Objectives: To quantify the effect of previous false-positive mammogram results on rescreening rates in a population of women participating in the BreastScreen WA (BSWA) program. Design and participants: Retrospective cohort study of women aged 50–69 years who received free screening mammograms at BSWA between 1 January 1995 and 31 December 2007. Main outcome measures: Percentages of women attending rescreening, and risk ratios for rescreening. Results: A total of 22 396 screening mammograms were falsely reported as positive, and 560 333 mammogram screens were reported as normal (negative). Women with a false-positive index mammogram result were less likely than women with a true-negative index mammogram result to attend rescreening at 27 months (67.6% v 70.7%; risk ratio, 0.96; P < 0.001). A reduced rescreening rate was seen in all subgroups of women except Indigenous women. Rescreening rates were affected by the types of assessment done at the recall visit. Conclusion: Mammographic population screening services should keep their false-positive result rates low, to prevent women from being deterred from screening.

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