Evidence map›Paper›PMID 33597169›Full record

ArticleBMJ (Clinical research ed.)2021

Food anaphylaxis in the United Kingdom: analysis of national data, 1998-2018.

Alessia Baseggio Conrado, Despo Ierodiakonou, M Hazel Gowland, Robert J Boyle, Paul J Turner

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 79 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed, 5 pooled it
21.6field-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

79 citing papers in PubMed, 5 syntheses or guidelines pooled it, 203 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Global patterns in anaphylaxis due to specific foods: A systematic review.The Journal of allergy and clinical immunology · 2021
    Pooled it
  6. Validation and reliability of the Italian versions of the Food Allergy Quality of Life -Parental Burden (FAQL-PB) and -Parent Form 10 (FAQLQ-PF10) Questionnaires.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026
    Article
  7. Review
  8. Unusual Causes of Food-Induced Anaphylaxis - A Review.Indian dermatology online journal · 2026
    Article
  9. Article
  10. Article
  11. Article
  12. A retrospective cohort study of supervised and home baked and/or neat hen's egg challenge for pediatric IgE hen's egg allergy.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026
    Article
  13. Adrenaline Auto-Injector Prescribing in Primary Care in England: An Analysis of Non-Standard Dosing.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2026
    Article
  14. Identifying and Prioritising BSACI Service Standards for Paediatric Allergy in the United Kingdom.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2026
    Article
  15. Documentation of Drug and Non-Drug Allergies in Public Hospital Electronic Health Records: A National Survey.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2026
    Article
  16. Observational
  17. Article
  18. Review
  19. Lactate in Anaphylaxis: 100 Years On.Sports medicine (Auckland, N.Z.) · 2025
    Review
  20. Trends in food allergy among Hong Kong preschoolers: Findings from 2006, 2013, and 2020 surveys.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2025
    Article

19 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 4 institutions in 3 countries.

Alessia Baseggio ConradoNational Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, UK.
Despo IerodiakonouHealth Planning Unit, Department of Social Medicine, Faculty of Medicine, University of Crete, Heraklion, Crete, Greece.
M Hazel GowlandAllergy Action, St Albans, UK.
Robert J BoyleNational Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, UK.
Paul J TurnerNational Heart and Lung Institute, Imperial College London, Norfolk Place, London W2 1PG, UK p.turner@imperial.ac.uk.ORCID 0000-0001-9862-5161
Imperial College London · GBAllergy Action · GBLung Institute · USUniversity of Crete · GR

Funding

Medical Research Council MR/K010468/1
6 · The paper itself

Abstract

objectiveTo describe time trends for hospital admissions due to food anaphylaxis in the United Kingdom over the past 20 years.

designAnalysis of national data, 1998-2018.

settingData relating to hospital admissions for anaphylaxis and deaths, and prescription data for adrenaline autoinjector devices.

participantsUK population as a whole and devolved nations (England, Scotland, Wales, and Northern Ireland).

main outcome measuresTime trends, age, and sex distributions for hospital admissions for anaphylaxis due to food and non-food triggers, and how these admission rates compare with the case fatality rate (number of fatalities as a proportion of hospital admissions).

resultsBetween 1998 and 2018, 101 891 people were admitted to hospital for anaphylaxis. Of these admissions, 30 700 (30.1%) were coded as due to a food trigger. Food anaphylaxis admissions increased from 1.23 to 4.04 per 100 000 population per year (from 1998 to 2018), an annual increase of 5.7% (95% confidence interval 5.5% to 5.9%, P<0.001). The largest increase in hospital admissions was observed in children younger than 15 years, with an increase from 2.1 to 9.2 admissions per 100 000 population per year (an annual increase of 6.6%, 95% confidence interval 6.3% to 7.0%). For comparison, the annual increase was 5.9% (5.6% to 6.2%) in people aged 15-59 years and 2.1% (1.8% to 3.1%) in those aged 60 years and older. 152 deaths were identified where the fatal event was probably caused by food induced anaphylaxis. The case fatality rate decreased from 0.7% to 0.19% for confirmed fatal food anaphylaxis (rate ratio 0.931, 95% confidence interval 0.904 to 0.959, P<0.001) and to 0.30% for suspected fatal food anaphylaxis (0.970, 0.945 to 0.996, P=0.024). At least 46% (86 of 187, which also includes 35 deaths in 1992-98) of deaths were triggered by peanut or tree nut. Cow's milk was responsible for 17 of 66 (26%) deaths in school aged children. Over the same time period, prescriptions for adrenaline autoinjectors increased by 336% (estimated rate ratio 1.113, 95% confidence interval 1.112 to 1.113; an increase of 11% per year).

conclusionsHospital admissions for food induced anaphylaxis have increased from 1998 to 2018, however the case fatality rate has decreased. In school aged children, cow's milk is now the most common single cause of fatal anaphylaxis.

Indexed as

AdolescentAdultAgedAged, 80 and overAge DistributionAnaphylaxisChildChild, PreschoolEpinephrineFemaleFood HypersensitivityHospitalizationHumansInfantInfant, NewbornMaleEpinephrineSympathomimetics

Identifiers

PMID33597169
PMCPMC7885259
OpenAlexW3130542791

What OpenQuestion holds

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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.