Evidence map›Paper›PMID 38990201›Full record

SynthesisJournal of travel medicine2024

Hepatitis B infection and immunity in migrant children and pregnant persons in Europe: a systematic review and meta-analysis.

Carla Hobart, Julia M Pescarini, Laith Evans, Haleema S Adil, Shehzhore T Adil, Anna Deal, Jessica Carter, Philippa C Matthews, Sally Hargreaves, Nuria Sanchez Clemente

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Journal of travel medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact
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

5 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
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

10 authors.

Carla HobartFaculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, UK.
Julia M PescariniFaculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, UK.
Laith EvansCentre for Neonatal and Paediatric Infection, St. George's University of London, Cranmer Terrace, London SW17 0RE, UK.
Haleema S AdilUniversity College London Medical School, 74 Huntley St, London WC1E 6DE, UK.
Shehzhore T AdilUniversity College London Medical School, 74 Huntley St, London WC1E 6DE, UK.
Anna DealMigrant Health Research Group, Institute for Infection and Immunity, St. George's University London, Cranmer Terrace, London SW17 0RE, UK.
Jessica CarterMigrant Health Research Group, Institute for Infection and Immunity, St. George's University London, Cranmer Terrace, London SW17 0RE, UK.
Philippa C MatthewsThe Francis Crick Institute, HBV Elimination Laboratory, 1 Midland Road, London NW1 1AT, UK.
Sally HargreavesMigrant Health Research Group, Institute for Infection and Immunity, St. George's University London, Cranmer Terrace, London SW17 0RE, UK.
Nuria Sanchez ClementeFaculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, WC1E 7HT, London, UK.

Funding

Academy of Medical Sciences SBF005\1111La Caixa LCF/PR/SP21/52930003Medical Research Council MRC/N013638/1National Institute for Health Research NIHR300072
6 · The paper itself

Abstract

backgroundThe WHO's global hepatitis strategy aims to achieve viral hepatitis elimination by 2030. Migrant children and pregnant persons represent an important target group for prevention strategies. However, evidence on the burden of chronic hepatitis B (CHB) infection and the factors affecting its incidence is lacking.

methodsEMBASE, Global Health, Global Index Medicus, Web of Science and Medline were searched for articles in any language from 1 January 2012 to 8 June 2022. Studies reporting CHB prevalence, disease severity, complications and/or prevention strategies, including vaccination, prevention of vertical transmission and access to care/treatment for migrant children and pregnant migrants, were included. Pooled estimates of CHB prevalence and hepatitis B vaccination (HBV) coverage among migrant children were calculated using random effects meta-analysis.

findings42 studies were included, 27 relating to migrant children and 15 to pregnant migrants across 12 European countries, involving data from 64 773 migrants. Migrants had a higher incidence of CHB than host populations. Among children, the pooled prevalence of CHB was higher for unaccompanied minors (UAM) (5%, [95% CI: 3-7%]) compared to other child migrants, including internationally adopted children (IAC) and refugees (1%, [95% CI: 1-2%]). Region of origin was identified as a risk factor for CHB, with children from Africa and pregnant migrants from Africa, Eastern Europe and China at the highest risk. Pooled estimates of HBV vaccine coverage were lower among UAM (12%, [95% CI: 3-21%]) compared to other child migrants (50%, [95% CI: 37-63%]).

conclusionA range of modifiable determinants of HBV prevalence in migrant children and pregnant persons were identified, including sub-optimal screening, prevention and continuum of care. There is a need to develop evidence-based approaches in hepatitis care for these groups, thereby contributing towards global viral hepatitis elimination goals.

Indexed as

Hepatitis B, ChronicPregnancy Complications, InfectiousTransients and MigrantsChildEuropeFemaleHepatitis B VaccinesHumansIncidenceInfectious Disease Transmission, VerticalPregnancyPrevalenceHepatitis B Vaccineschronic hepatitis BhepatitisMigrantspregnantprevalencespreventions

Identifiers

PMID38990201
PMCPMC11298050

What OpenQuestion holds

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Registered trials

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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.