SynthesisLiver international : official journal of the International Association for the Study of the Liver2020
The global epidemiology of hepatitis E virus infection: A systematic review and meta-analysis.
Synthesis in Liver international : official journal of the International Association for the Study of the Liver, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 167 papers, 13 of them syntheses that pooled it.
What it found
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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.
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.
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Who cites it
167 citing papers in PubMed, 13 syntheses or guidelines pooled it, 260 citations in OpenAlex.
- Pooled it
- Hepatitis E Infection in Patients With Inflammatory Bowel Diseases: A Systematic Review and Meta-Analysis.Journal of viral hepatitis · 2026Pooled it
- Knowledge and Perceptions of Hepatitis B in Immigrant Populations: A Systematic Review and Thematic Synthesis of Qualitative Research.Journal of viral hepatitis · 2025Pooled it
- Pooled it
- The burden of HEV-related acute liver failure in Bangladesh, China and India: a systematic review and meta-analysis.BMC public health · 2023Pooled it
- Meta-analysis and moderator analysis of the seroprevalence of hepatitis E in South-Eastern Asia.Scientific reports · 2023Pooled it
- Pooled it
- Prevalence of hepatitis E virus in China from 1997 to 2022: a systematic review and meta-analysis.Frontiers in public health · 2023Pooled it
- Hepatitis E Virus in Water Environments: A Systematic Review and Meta-analysis.Food and environmental virology · 2022Pooled it
- Mapping global epidemiology of thyroid nodules among general population: A systematic review and meta-analysis.Frontiers in oncology · 2022Pooled it
- Seroprevalence of hepatitis E virus infection in the Americas: Estimates from a systematic review and meta-analysis.PloS one · 2022Pooled it
- Hepatitis E in solid organ transplant recipients: A systematic review and meta-analysis.World journal of gastroenterology · 2021Pooled it
- The global epidemiology of hepatitis E virus infection: A systematic review and meta-analysis.Liver international : official journal of the International Association for the Study of the Liver · 2020Pooled it
- Long-term protection from naturally acquired immunity against hepatitis E virus reinfection.Nature communications · 2025Trial
- Seroprevalence of hepatitis E in blood donors in Santiago, Chile: a monocentric cross-sectional study.IJID regions · 2026Article
- Cost-effectiveness analysis of hepatitis E screening and vaccination: targeting vulnerable populations in outbreak and sporadic settings in China.Emerging microbes & infections · 2026Article
- A capsid hinge region in European hepatitis E virus links mutations to genotype, virion surface properties, and environmental circulation.Applied and environmental microbiology · 2026Article
- Hepatitis E Virus Infection in Pregnant Women.Microorganisms · 2026Review
- Review
- Clinical Guidelines for Hepatitis E Vaccination in India: An Expert Panel Consensus Report on the Recombinant Hepatitis E Vaccine, HEV 239.Pathogens (Basel, Switzerland) · 2026Review
107 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
10 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
aimsHepatitis E virus (HEV), as an emerging zoonotic pathogen, is a leading cause of acute viral hepatitis worldwide, with a high risk of developing chronic infection in immunocompromised patients. However, the global epidemiology of HEV infection has not been comprehensively assessed. This study aims to map the global prevalence and identify the risk factors of HEV infection by performing a systematic review and meta-analysis.
methodsA systematic searching of articles published in Medline, Embase, Web of science, Cochrane and Google scholar databases till July 2019 was conducted to identify studies with HEV prevalence data. Pooled prevalence among different countries and continents was estimated. HEV IgG seroprevalence of subgroups was compared and risk factors for HEV infection were evaluated using odd ratios (OR).
resultsWe identified 419 related studies which comprised of 1 519 872 individuals. A total of 1 099 717 participants pooled from 287 studies of general population estimated a global anti-HEV IgG seroprevalence of 12.47% (95% CI 10.42-14.67; I
conclusionsGlobally, approximately 939 million corresponding to 1 in 8 individuals have ever experienced HEV infection. 15-110 million individuals have recent or ongoing HEV infection. Our study highlights the substantial burden of HEV infection and calls for increasing routine screening and preventive measures.
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Registered trials
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.