Abstract
Objective: Liquid-based cytology with supplementary human papillomavirus triage (LBC+HPV triage) of low-grade cytological abnormalities may improve the detection of cervical intraepithelial neoplasia (CIN) compared with conventional cytology. To investigate this subject, LBC+HPV triage and conventional cytology were alternated in a population-based screening setting. Cases with abnormal cytology were referred for colposcopy.
Methods: We compared the performance of LBC+HPV triage [n=4059] and conventional cytology [n=4261] in detecting CIN2 or worse [CIN2+] and CIN3 or worse [CIN3+]. We used logistic regression to assess CIN detection rates and abnormal cytology rates, which yielded unadjusted odds ratios (OR) and corresponding 95% confidence intervals (CI). We computed adjusted ORs from a multivariate logistic regression model that included potential confounders such as age, screening centre and time period.
Results: We found similar detection rates of CIN2+ by LBC+HPV triage and conventional cytology; the adjusted OR for the comparison of CIN detection rates was 0.87 (95% CI: 0.60-1.26) for CIN2+ and 1.00 (95% CI: 0.64-1.58) for CIN3+. We also found similar positive predictive values between methods. Thus, there was no advantage in using LBC+HPV triage as compared to conventional cytology in terms of sensitivity, specificity and positive and negative predictive value to detect histologically confirmed CIN2+ and CIN3+.
Conclusions: LBC+HPV triage may lead to a reduction in unnecessary work-ups for women with abnormal cytological lesions who are negative for high-risk HPV. It is important to continuously monitor abnormal cytology rates, both when testing a new method, and after the new method has become routine.
Keywords: Liquid-based cytology, human papillomavirus, screening, cervical intraepithelial neoplasia (CIN), conventional cytology, colposcopy, CIN2+ , CIN3+, sensitivity, specificity
Current Pharmaceutical Design
Title:Liquid-based Cytology With HPV Triage of Low-grade Cytological Abnormalities Versus Conventional Cytology in Cervical Cancer Screening
Volume: 19 Issue: 8
Author(s): Maria Froberg, Ingrid Norman, Bo Johansson, Anders Hjerpe, Elisabete Weiderpass and Sonia Andersson
Affiliation:
Keywords: Liquid-based cytology, human papillomavirus, screening, cervical intraepithelial neoplasia (CIN), conventional cytology, colposcopy, CIN2+ , CIN3+, sensitivity, specificity
Abstract: Objective: Liquid-based cytology with supplementary human papillomavirus triage (LBC+HPV triage) of low-grade cytological abnormalities may improve the detection of cervical intraepithelial neoplasia (CIN) compared with conventional cytology. To investigate this subject, LBC+HPV triage and conventional cytology were alternated in a population-based screening setting. Cases with abnormal cytology were referred for colposcopy.
Methods: We compared the performance of LBC+HPV triage [n=4059] and conventional cytology [n=4261] in detecting CIN2 or worse [CIN2+] and CIN3 or worse [CIN3+]. We used logistic regression to assess CIN detection rates and abnormal cytology rates, which yielded unadjusted odds ratios (OR) and corresponding 95% confidence intervals (CI). We computed adjusted ORs from a multivariate logistic regression model that included potential confounders such as age, screening centre and time period.
Results: We found similar detection rates of CIN2+ by LBC+HPV triage and conventional cytology; the adjusted OR for the comparison of CIN detection rates was 0.87 (95% CI: 0.60-1.26) for CIN2+ and 1.00 (95% CI: 0.64-1.58) for CIN3+. We also found similar positive predictive values between methods. Thus, there was no advantage in using LBC+HPV triage as compared to conventional cytology in terms of sensitivity, specificity and positive and negative predictive value to detect histologically confirmed CIN2+ and CIN3+.
Conclusions: LBC+HPV triage may lead to a reduction in unnecessary work-ups for women with abnormal cytological lesions who are negative for high-risk HPV. It is important to continuously monitor abnormal cytology rates, both when testing a new method, and after the new method has become routine.
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Cite this article as:
Froberg Maria, Norman Ingrid, Johansson Bo, Hjerpe Anders, Weiderpass Elisabete and Andersson Sonia, Liquid-based Cytology With HPV Triage of Low-grade Cytological Abnormalities Versus Conventional Cytology in Cervical Cancer Screening, Current Pharmaceutical Design 2013; 19 (8) . https://dx.doi.org/10.2174/1381612811319080007
DOI https://dx.doi.org/10.2174/1381612811319080007 |
Print ISSN 1381-6128 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-4286 |
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