Show simple item record

dc.contributor.authorCastanon, Aen_US
dc.contributor.authorLandy, Ren_US
dc.contributor.authorMichalopoulos, Den_US
dc.contributor.authorBhudia, Ren_US
dc.contributor.authorLeaver, Hen_US
dc.contributor.authorQiao, YLen_US
dc.contributor.authorZhao, Fen_US
dc.contributor.authorSasieni, Pen_US
dc.description.abstractPurpose: To assess the sensitivity of cervical cytology to cancer by pooling individual patient cytology results from cancers diagnosed in studies that assessed cervical screening in low- and middle-income countries. Methods: Two authors reviewed studies identified through PubMed and Embase databases. We included studies that reported cervical cytology in which at least one woman was diagnosed with cervical cancer and in which abnormal cytology results were investigated at colposcopy and through a histologic sample (if appropriate). When cytology results were not reported in the manuscript, authors were contacted. Stratified analyses and meta-regression were performed to assess sources of heterogeneity between studies. Results: We included 717 cancers from 23 studies. The pooled sensitivity of cytology to cancer at a cutoff of a high-grade squamous intraepithelial lesion (HSIL) or worse was 79.4% (95% CI, 67.7% to 86.0%). Results from stratified analyses did not differ significantly, except among studies that recruited symptomatic women or women referred because of abnormal cytology, when the sensitivity of cytology was much higher (95.9%; 95% CI, 86.5% to 99.9%). The cutoff of an HSIL or worse detected 85% of the cancers that would have been detected at a cutoff of atypical squamous cells of undetermined significance or worse (relative sensitivity, 85.2%; 95% CI, 80.7% to 89.7%). Conclusion: Cytology at a high cutoff could be an excellent tool for targeted screening of populations at high risk of cervical cancer with a view to diagnose cancer at an earlier stage.en_US
dc.description.sponsorshipSupported by Cancer Research UK grant No. C8162/A16872en_US
dc.format.extent524 - 538en_US
dc.relation.ispartofJ Glob Oncolen_US
dc.rightsLicensed under the Creative Commons Attribution 4.0 License:
dc.titleSystematic Review and Meta-Analysis of Individual Patient Data to Assess the Sensitivity of Cervical Cytology for Diagnosis of Cervical Cancer in Low- and Middle-Income Countries.en_US
dc.rights.holder© 2017 by American Society of Clinical Oncology. All rights reserved.
pubs.notesNot knownen_US
pubs.publication-statusPublished onlineen_US
qmul.funderCancer screening & statistics::Cancer Research UKen_US

Files in this item


There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record