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HPV-based screening for cervical cancer among women 55-59 years of age
Örebro University, School of Health Sciences. Dept. of Women's Health.
Örebro University, School of Health Sciences. Dept. of Laboratory Medicine.ORCID iD: 0000-0001-9992-266x
Örebro University, School of Medical Sciences. Dept. of Laboratory Medicine.ORCID iD: 0000-0003-2317-5738
Örebro University, School of Medical Sciences. Dept. of Laboratory Medicine.ORCID iD: 0000-0001-6881-237X
2019 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 14, no 6, article id e0217108Article in journal (Refereed) Published
Abstract [en]

AIM: Many cervical cancers occurs among women over 65 and prevalence of HPV genotypes in this age cohort is sparingly studied. One aim of this study was to study the prevalence and distribution of HPV genotypes in women 55-59 years, with normal cytology when exiting the screening program. Secondly, HPV clearance as well as the value of HPV genotyping and/or liquid based cytology as triage tests for identifying histological dysplasia among women with persistent HPV was studied.

METHODS: Women that exited the screening program with normal cytology, between the years 2012-2014, in Örebro County, Sweden, were invited to this study. A total of 2946 samples were analyzed with a broad-spectrum assay to detect both hrHPV and lrHPV in order to investigate the distribution of genotypes. In the consent group, women with a positive hrHPV test were offered a follow-up test and a cone biopsy for histological confirmation, and a follow up sample 6 months post cone.

RESULTS: The overall prevalence of hrHPV was 7.4% and 59% of them remained hrHPV positive in a follow-up test after 12 months. A total of 99 women had a cone biopsy done, where 19% showed histological dysplasia. HPV 53 was the most common genotype, and among women with histology confirmed LSIL or HSIL, HPV 31 was most common. A positive hrHPV result showed a PPV of 25% for LSIL+ and 12.5%for HSIL+. Using detection of HPV 16/18 genotypes as a triage test for hrHPV positive tests, indicated FNR for histological LSIL+ and HSIL+ of 94% and 87.5% respectively, whilst triage based on cervical cytology had a FNR of 69% for LSIL+ and 37.5% for HSIL+.

CONCLUSION: The most common hrHPV genotypes among women 55-59 years of age were non HPV16/18 genotypes, and in this population, these genotypes represented most of the histological verified HSIL lesions. This result does not support the proposition of a HPV 16/18 triaging test after a positive hrHPV test as a marker of histological HSIL+ cervical lesions in women over 55 years of age. Similarly, cytological triage after a positive hrHPV showed no additional benefit in this population. Specific triaging tests should be validated to follow post-menopausal women with a positive hrHPV test.

Place, publisher, year, edition, pages
PLOS , 2019. Vol. 14, no 6, article id e0217108
National Category
Cancer and Oncology
Identifiers
URN: urn:nbn:se:oru:diva-74701DOI: 10.1371/journal.pone.0217108ISI: 000471587000007PubMedID: 31199811Scopus ID: 2-s2.0-85067434997OAI: oai:DiVA.org:oru-74701DiVA, id: diva2:1325714
Note

Funding Agencies:

Region Örebro County Research Committee  

Örebro University Hospital Research Foundation  

BBMRI.se 

Available from: 2019-06-17 Created: 2019-06-17 Last updated: 2019-07-23Bibliographically approved

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Bergengren, LovisaLillsunde-Larsson, GabriellaHelenius, GiselaKarlsson, Mats G.

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