Evidence map›Paper›PMID 29707775›Full record

ArticleInternational journal of cancer2018

Impact of HPV vaccination on outcome of cervical cytology screening in Denmark-A register-based cohort study.

Lise Holst Thamsborg, George Napolitano, Lise Grupe Larsen, Elsebeth Lynge

Open access · bronzeAbstract read
In one paragraph

Article in International journal of cancer, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Lise Holst ThamsborgDepartment of Public Health, University of Copenhagen, Copenhagen, 1014, Denmark.
George NapolitanoDepartment of Public Health, University of Copenhagen, Copenhagen, 1014, Denmark.ORCID 0000-0002-1197-2599
Lise Grupe LarsenDepartment of Pathology, Zealand University Hospital, Roskilde, 4000, Denmark.
Elsebeth LyngeNykøbing Falster Hospital, University of Copenhagen, Ejegodvej 63, DK-4800, Denmark.
University of Copenhagen · DKZealand University Hospital · DK

Funding

Kirsten and Freddy Johansen's FundKirsten og Freddy Johansens Fond
6 · The paper itself

Abstract

4vHPV vaccination has been tested in randomized controlled trials under almost ideal conditions, and studies of real-life use have compared outcome between vaccinated and unvaccinated women from the same birth cohort and mostly before screening age. Here we present the first-to our knowledge-evaluation of the impact of the 4vHPV vaccination in real life without selection bias in the reported data. The study has been carried out by comparing the results after first cervical screening between an HPV-vaccinated and an unvaccinated birth cohort, consisting of women born in Denmark in 1993 and 1983, respectively. Cytology data covering an 8-year period, from the age of 15 (age of HPV-vaccination) to age 23 (age of invitation to first cervical screening), were retrieved from the Danish National Pathology Register. Abnormal cytology, defined as atypical squamous cell of undetermined significance and worse (ASCUS+) was detected in 9.4% of women born in 1993 as compared with 9.0% of women born in 1983; RR = 1.04 (95% CI 0.96-1.12), p = .29. Detection of high-grade squamous intraepithelial lesion (HSIL) was statistically significantly lower in the 1993 than in the 1983 cohort, RR = 0.6 (95% CI 0.5-0.7), p < .0001, while the opposite pattern was seen for ASCUS RR = 1.4 (95% CI 1.2-1.6), p < .0001. The decrease in HSIL means that more women can be spared referral for colposcopy and biopsy. The increase of ASCUS could be explained by transition from conventional to liquid-based cytology, but this observation requires further monitoring.

Indexed as

AdolescentAdultAtypical Squamous Cells of the CervixCervix UteriCohort StudiesDenmarkEarly Detection of CancerFemaleFollow-Up StudiesHumansPapillomaviridaePapillomavirus InfectionsPrognosisRegistriesSquamous Intraepithelial Lesions of the CervixUterine Cervical Dysplasiacervical cytologycervical screeningHPV vaccinationhuman papillomavirus

Identifiers

PMID29707775
PMCPMC6175001
OpenAlexW2801872193

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.