Evidence map›Paper›PMID 35531630›Full record

ArticleInfluenza and other respiratory viruses2022

Live-attenuated influenza vaccine effectiveness against hospitalization in children aged 2-6 years, the first three seasons of the childhood influenza vaccination program in England, 2013/14-2015/16.

Nicki L Boddington, Punam Mangtani, Hongxin Zhao, Neville Q Verlander, Joanna Ellis, Nick Andrews, Richard G Pebody

Open access · goldAbstract read
In one paragraph

Article in Influenza and other respiratory viruses, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
1.7field-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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

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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

7 authors at 3 institutions in 2 countries.

Nicki L BoddingtonImmunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK.ORCID 0000-0001-8019-4076
Punam MangtaniLondon School of Hygiene and Tropical Medicine, London, UK.
Hongxin ZhaoImmunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK.
Neville Q VerlanderImmunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK.
Joanna EllisImmunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK.
Nick AndrewsImmunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK.
Richard G PebodyImmunisation and Vaccine Preventable Diseases Division, UK Health Security Agency, London, UK.
UK Health Security Agency · GBLondon School of Hygiene & Tropical Medicine · GBWorld Health Organization Regional Office for Europe · DK

Funding

World Health Organization 001
6 · The paper itself

Abstract

introductionIn 2013, the United Kingdom began to roll-out a universal annual influenza vaccination program for children. An important component of any new vaccination program is measuring its effectiveness. Live-attenuated influenza vaccines (LAIVs) have since shown mixed results with vaccine effectiveness (VE) varying across seasons and countries elsewhere. This study aims to assess the effectiveness of influenza vaccination in children against severe disease during the first three seasons of the LAIV program in England.

methodsUsing the screening method, LAIV vaccination coverage in children hospitalized with laboratory-confirmed influenza infection was compared with vaccination coverage in 2-6-year-olds in the general population to estimate VE in 2013/14-2015/16.

resultsThe overall LAIV VE, adjusted for age group, week/month and geographical area, for all influenza types pooled over the three influenza seasons was 50.1% (95% confidence interval [CI] 31.2, 63.8). By age, there was evidence of protection against hospitalization from influenza vaccination in both the pre-school (2-4-year-olds) (48.1%, 95% CI 27.2, 63.1) and school-aged children (5-6-year-olds) (62.6%, 95% CI 2.6, 85.6) over the three seasons.

conclusionLAIV vaccination in children provided moderate annual protection against laboratory-confirmed influenza-related hospitalization in England over the three influenza seasons. This study contributes further to the limited literature to date on influenza VE against severe disease in children.

Indexed as

Influenza A Virus, H1N1 SubtypeInfluenza, HumanInfluenza VaccinesCase-Control StudiesChildChild, PreschoolEnglandHospitalizationHumansSeasonsVaccinationVaccine EfficacyVaccines, AttenuatedInfluenza VaccinesVaccines, Attenuatedchildreninfluenzainfluenza vaccine effectivenessLAIVscreening method

Identifiers

PMID35531630
PMCPMC9343328
OpenAlexW4229375071

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LicenceCC BY
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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.