Evidence map›Paper›PMID 32430964›Full record

SynthesisActa paediatrica (Oslo, Norway : 1992)2020

Children are unlikely to be the main drivers of the COVID-19 pandemic - A systematic review.

Jonas F Ludvigsson

Open access · bronzeAbstract readSystematic Review
In one paragraph

Synthesis in Acta paediatrica (Oslo, Norway : 1992), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 125 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
125citing papers in PubMed, 8 pooled it
23.0field-weighted citation impact, top 1% 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

125 citing papers in PubMed, 8 syntheses or guidelines pooled it, 273 citations in OpenAlex.

  1. SARS-CoV-2 post-acute sequelae in previously hospitalised patients: systematic literature review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2023
    Pooled it
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  3. Update on SARS-CoV-2 seroprevalence: regional and worldwide.Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases · 2021
    Pooled it
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65 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

1 author at 1 institution in 3 countries.

Jonas F LudvigssonDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0003-1024-5602
University of Nottingham · GB

Funding

Karolinska InstitutetRegion Örebro län
6 · The paper itself

Abstract

aimMany countries have closed schools and kindergartens to minimise COVID-19, but the role that children play in disease transmission is unclear.

methodsA systematic literature review of the MEDLINE and EMBASE databases and medRxiv/bioRxiv preprint servers to 11 May 2020 identified published and unpublished papers on COVID-19 transmission by children.

resultsWe identified 700 scientific papers and letters and 47 full texts were studied in detail. Children accounted for a small fraction of COVID-19 cases and mostly had social contacts with peers or parents, rather than older people at risk of severe disease. Data on viral loads were scarce, but indicated that children may have lower levels than adults, partly because they often have fewer symptoms, and this should decrease the transmission risk. Household transmission studies showed that children were rarely the index case and case studies suggested that children with COVID-19 seldom caused outbreaks. However, it is highly likely that children can transmit the SARS-COV-2 virus, which causes COVID-19, and even asymptomatic children can have viral loads.

conclusionChildren are unlikely to be the main drivers of the pandemic. Opening up schools and kindergartens is unlikely to impact COVID-19 mortality rates in older people.

Indexed as

PandemicsChildCoronavirus InfectionsCOVID-19HumansPneumonia, ViralSchoolschildrencoronavirusCOVID-19pandemictransmission

Identifiers

PMID32430964
PMCPMC7280674
OpenAlexW3024580769

What OpenQuestion holds

Textmetadata
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.