Relative accuracy of cervical and anal cytology for detection of high grade lesions by colposcope guided biopsy: a cut-point meta-analytic comparison |
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Authors: | Edward R Cachay Wollelaw Agmas William C Mathews |
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Institution: | Department of Medicine, University of California at San Diego, San Diego, California, United States of America. |
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Abstract: | BackgroundWe recently reported, using a receiver operating characteristic area metric, the first meta-analytic comparison of the relative accuracy of cervical and anal cytology in detecting moderate or severe histopathologic lesions by magnification directed punch biopsy. The aim of the present research was to meta-analytically examine cut-point specific operating characteristics (sensitivity, specificity) of cervical and anal cytology in detecting high grade squamous intraepithelial lesion (HSIL) histopathology by colposcope directed punch biopsy.Methodology/Principal FindingsThe primary eligibility requirement was availability of tabulated cytology (normal, atypical cells of unclear significance ASCUS], low grade squamous intraepithelial lesion, HSIL or atypical squamous cells cannot rule out high grade ASC-H]) and biopsy (Conclusions/SignificanceUsing a cytology cut-point of HSIL or ASC-H, anal cytology is less sensitive but comparably specific to cervical cytology. However, using a cut-point of ASCUS, differences in accuracy were of borderline significance. |
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