Evidence map›Paper›PMID 31364554›Full record

SynthesisEpidemiology and infection2019

Meningococcal carriage by age in the African meningitis belt: a systematic review and meta-analysis.

L V Cooper, P A Kristiansen, H Christensen, A Karachaliou, C L Trotter

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Epidemiology and infection, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
1.9field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 32 citations in OpenAlex.

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  7. ModelingInfectious Disease Modelling · 2025
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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

5 authors at 3 institutions in 2 countries.

L V CooperDisease Dynamics Unit, Department of Veterinary Medicine,University of Cambridge,Madingley Road, Cambridge CB3 0ES, England,UK.ORCID 0000-0002-2942-3627
P A KristiansenWHO Collaborating Center for Reference and Research on Meningococci, Norwegian Institute of Public Health,Oslo,Norway.
H ChristensenPopulation Health Sciences, Bristol Medical School, University of Bristol,Oakfield House, Oakfield Grove, Bristol BS8 2BN, England,UK.
A KarachaliouDisease Dynamics Unit, Department of Veterinary Medicine,University of Cambridge,Madingley Road, Cambridge CB3 0ES, England,UK.
C L TrotterDisease Dynamics Unit, Department of Veterinary Medicine,University of Cambridge,Madingley Road, Cambridge CB3 0ES, England,UK.
University of Cambridge · GBNorwegian Institute of Public Health · NOUniversity of Bristol · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Meningococcal carriage dynamics drive patterns of invasive disease. The distribution of carriage by age has been well described in Europe, but not in the African meningitis belt, a region characterised by frequent epidemics of meningitis. We aimed to estimate the age-specific prevalence of meningococcal carriage by season in the African meningitis belt. We searched PubMed, Web of Science, the Cochrane Library and grey literature for papers reporting carriage of Neisseria meningitidis in defined age groups in the African meningitis belt. We used a mixed-effects logistic regression to model meningococcal carriage prevalence as a function of age, adjusting for season, location and year. Carriage prevalence increased from low prevalence in infants (0.595% in the rainy season, 95% CI 0.482-0.852%) to a broad peak at age 10 (1.94%, 95% CI 1.87-2.47%), then decreased in adolescence. The odds of carriage were significantly increased during the dry season (OR 1.5 95% CI 1.4-1.7) and during outbreaks (OR 6.7 95% CI 1.6-29). Meningococcal carriage in the African meningitis belt peaks at a younger age compared to Europe. This is consistent with contact studies in Africa, which show that children 10-14 years have the highest frequency of contacts. Targeting older children in Africa for conjugate vaccination may be effective in reducing meningococcal transmission.

Indexed as

Disease OutbreaksAdolescentAfricaAge FactorsCarrier StateChildChild, PreschoolDisease Transmission, InfectiousFemaleHumansInfantMaleMass VaccinationMeningitis, MeningococcalMeningococcal VaccinesNeisseria meningitidisMeningococcal VaccinesInfectious disease epidemiologymeningitis-bacterialmeningococcal diseasemeta-analysispharyngeal carriage

Identifiers

PMID31364554
PMCPMC6625194
OpenAlexW2954577298

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.