Systematic review and meta-analysis of the seroprevalence of hepatitis E virus in the general population across non-endemic countries

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creativework.keywords - en
Hepatitis E / epidemiology
Hepatitis E virus / physiology*
Humans
Seroepidemiologic Studies
dc.contributor.author
Wilhelm, Barbara
Waddell, Lisa
Greig, Judy
Young, Ian
dc.date.accessioned
2024-09-09T19:01:12Z
dc.date.available
2024-09-09T19:01:12Z
dc.date.issued
2019-06-07
dc.description.abstract - en
BACKGROUND: Hepatitis E virus (HEV) has commonly been associated with large waterborne outbreaks of human jaundice in endemic areas but it has been increasingly recognised as a cause of sporadic human cases of jaundice in non-endemic areas, in individuals with no history of travel. Zoonotic exposure is widely hypothesized to be an important potential transmission route in these sporadic human cases. Serosurveys conducted to determine the frequency of HEV human exposure report wide ranges in prevalence across studies and locations. Our study objective was to compute meta-analysis summary estimates of human seroprevalence of HEV IgG within countries considered HEV non-endemic, where possible, and to determine whether this varied significantly across these countries, as well as investigating the role of potential HEV seroprevalence predictors such as population age structure. MATERIALS AND METHODS: A broad literature search was conducted in six electronic databases. Citations were appraised, and relevant data extracted using forms designed and pre-tested a priori. Meta-analysis and meta-regression were conducted in R, with HEV IgG seroprevalence in blood donors or the general population being the outcome of interest, and country, assay, population age and sex structure, and chronological time investigated as predictors of the outcome. RESULTS: From 4163 unique citations initially captured, data were extracted from 135 studies investigating HEV serology in blood donors or the general population, of 31 countries among those categorised as 'very high human development' by the United Nations. Country of sampling and assay employed were consistently significant predictors of HEV IgG seroprevalence with chronological time being a non-significant predictor in the dataset of captured studies. CONCLUSIONS: While country of sampling and assay employed were significant predictors of HEV seroprevalence, comparison of HEV seroprevalence across non-endemic countries is hampered by the lack of a gold standard assay and uncertainty regarding residual bias across studies, as well as regional differences within some countries.
dc.identifier.citation
Wilhelm B, Waddell L, Greig J, Young I (2019) Systematic review and meta-analysis of the seroprevalence of hepatitis E virus in the general population across non-endemic countries. PLoS ONE 14(6): e0216826. https://doi.org/10.1371/ journal.pone.0216826
dc.identifier.doi
10.1371/ journal.pone.0216826
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/2922
dc.language.iso
en
dc.publisher
PLOS
dc.rights - en
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights - fr
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights.openaccesslevel - en
Gold
dc.rights.openaccesslevel - fr
Or
dc.rights.uri - en
https://creativecommons.org/licenses/by/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by/4.0/deed.fr
dc.subject - en
Health
dc.subject - fr
Santé
dc.subject.en - en
Health
dc.subject.fr - fr
Santé
dc.title - en
Systematic review and meta-analysis of the seroprevalence of hepatitis E virus in the general population across non-endemic countries
dc.type - en
Article
dc.type - fr
Article
local.article.journalissue
6
local.article.journaltitle
PLoS One
local.article.journalvolume
14
local.pagination
1-27
local.peerreview - en
Yes
local.peerreview - fr
Oui
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