Prevalence of Human Papillomavirus in Self-Taken Samples from Screening Nonattenders

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J U H Lam, M Rebolj, D M Ejegod, H Pedersen, C Rygaard, E Lynge, E Harder, L T Thomsen, S K Kjaer, J Bonde

The Copenhagen Self-Sampling Initiative (CSi) has shown how human papillomavirus (HPV)-based self-sampling can be used to increase screening participation among 23,632 nonattenders in the Capital Region of Denmark. In this study, we describe HPV prevalence and genotype frequency in 4,824 self-samples as determined by three HPV assays (the CLART, Onclarity, and Hybrid Capture 2 [HC2] assays) and compare the results with those for physician-taken follow-up samples. The HPV self-sample findings were also compared to the findings for a reference population of 3,347 routinely screened women from the Horizon study, which had been undertaken in the same screening laboratory. Nonattenders had an HPV prevalence of 11.3% as determined by the CLART assay, which was lower than that for women from the Horizon study (18.5%). One-third of the CSi women who tested HPV positive by self-sampling tested HPV negative on the physician-taken follow-up sample. The CLART and Onclarity assays agreed on 64% (95% confidence interval [CI], 60 to 68%) of the HPV-positive self-taken samples. When the HC2 assay results were added into a three-way comparison, the level of agreement decreased to 27% (95% CI, 24 to 29%). Our findings suggest that further validation of HPV assays on self-taken samples is needed for optimal HPV detection and correct clinical management of HPV-positive women.

Original languageEnglish
JournalJournal of Clinical Microbiology
Volume55
Issue number10
Pages (from-to)2913-2923
Number of pages11
ISSN0095-1137
DOIs
Publication statusPublished - Oct 2017

    Research areas

  • Journal Article

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