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    Effects of transitioning from conventional methods to liquid-based methods on unsatisfactory Papanicolaou tests: Results from a multicenter US study

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    Authors
    Owens, Christopher L.
    Peterson, Daniel J.
    Kamineni, Aruna
    Buist, Diana S. M.
    Weinmann, Sheila
    Ross, Tyler R.
    Williams, Andrew E.
    Stark, Azadeh
    Adams, Kenneth F.
    Field, Terry S.
    UMass Chan Affiliations
    Meyers Primary Care Institute
    Department of Pathology
    Document Type
    Journal Article
    Publication Date
    2013-05-08
    Keywords
    Vaginal Smears
    Papanicolaou test
    liquid based
    unsatisfactory
    conventional
    SurePath
    ThinPrep
    Community Health and Preventive Medicine
    Diagnosis
    Health Services Research
    Medical Pathology
    Neoplasms
    Oncology
    Pathology
    Women's Health
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    Link to Full Text
    https://doi.org/10.1002/cncy.21309
    Abstract
    BACKGROUND: Papanicolaou (Pap) testing has transitioned from conventional preparations (CPs) to liquid-based preparations (LBPs) because of the perceived superiority of LBPs. Many studies conclude that LBPs reduce unsatisfactory Pap tests; However, some believe that the evidence substantiating this claim is weak. The authors studied the effect of the transition from CPs to LBPs on the proportion of unsatisfactory Pap tests in 4 health care systems in the United States participating in the National Institutes of Health-funded Screening Effectiveness and Research in Community-Based Healthcare (SEARCH) project. METHODS: The study cohort consisted of 548,174 women ages 21 to 65 years who had 1443,725 total Pap tests between 2000 and 2010. Segmented regression analysis was used to estimate the effect of adopting LBPs on the proportion of unsatisfactory Pap tests after adjusting for age. RESULTS: Three sites that implemented SurePath LBP experienced significant reductions in unsatisfactory Pap tests (estimated effect: site 1, -2.46%; 95% confidence interval [CI], -1.47%, -3.45%; site 2, -1.78%; 95% CI, -1.54%, -2.02%; site 3, -8.25%; 95% CI, -7.33%, -9.17%). The fourth site that implemented ThinPrep LBP did not experience a reduction in unsatisfactory Pap tests. The relative risk of an unsatisfactory Pap test in women aged >/=50 years increased after the transition to LBPs (SurePath: relative risk, 2.1; 95% CI, 1.9-2.2; ThinPrep: relative risk, 1.7; 95% CI, 1.5-2.0). CONCLUSIONS: The observed changes in the proportion of unsatisfactory Pap tests varied across the participating sites and depended on the type of LBP technology, the age of women, and the rates before the implementation of this technology. Cancer (Cancer Cytopathol) 2013. (c) 2013 American Cancer Society.
    Source

    Cancer Cytopathol. 2013 May 8. doi: 10.1002/cncy.21309. Link to article on publisher's site

    DOI
    10.1002/cncy.21309
    Permanent Link to this Item
    http://hdl.handle.net/20.500.14038/37228
    PubMed ID
    23658145
    Related Resources

    Link to Article in PubMed

    ae974a485f413a2113503eed53cd6c53
    10.1002/cncy.21309
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