Evidence map›Paper›PMID 24807420›Full record

Trial reportClinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology2015

Maternal body mass index in early pregnancy and offspring asthma, rhinitis and eczema up to 16 years of age.

S Ekström, J Magnusson, I Kull, T Lind, C Almqvist, E Melén, A Bergström

Open access · bronzeAbstract readClinical TrialMulticenter Study
In one paragraph

Trial report in Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
4.7field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Excessive gestational weight gain and risk of asthma, rhinitis and allergic sensitization: Results from a Portuguese birth cohort.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2026
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  4. Article
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  7. Maternal obesity, gestational weight gain, and offspring asthma and atopy.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2022
    Article
  8. Article
  9. S3 guideline Allergy Prevention.Allergologie select · 2022
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  11. Article
  12. Intake ofThe European respiratory journal · 2021
    Article
  13. Article
  14. Fetal-Derived Immune Cells at the Roots of Lifelong Pathophysiology.Frontiers in cell and developmental biology · 2021
    Review
  15. Article
  16. Article
  17. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

S EkströmInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
J Magnusson
I Kull
T Lind
C Almqvist
E Melén
A Bergström
Karolinska Institutet · SEBoston Children's Hospital · USKarolinska University Hospital · SEStockholm County Council · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMaternal obesity has been linked to offspring asthma; however, other allergy-related diseases, as well as the association beyond early school age, are largely unstudied.

objectiveTo examine the associations between maternal body mass index (BMI) in pregnancy and offspring asthma, rhinitis, eczema and sensitization up to 16 years of age.

methodsA total of 3294 children from the Swedish birth cohort BAMSE were included in the analyses. Maternal BMI was assessed around week 10 in pregnancy. Information on asthma, rhinitis, eczema, lifestyle factors and environmental exposures was obtained by parental questionnaires at 1, 2, 4, 8, 12 and 16 years. Sensitization was defined from IgE levels of inhalant allergens at 4, 8 and 16 years in a subsample of 2850 children. Generalized estimated equation models were used to analyse the associations between maternal BMI and the outcomes at 1-16 years.

resultsMaternal BMI was positively associated with overall risk of asthma up to age of 16 years (adj OR per 5 kg/m(2) increase: 1.23; 95% CI 1.07-1.40 for prevalent asthma) excluding underweight mothers. In contrast, no significant associations were found for rhinitis, eczema or sensitization. The association with asthma was restricted to obese, rather than overweight mothers, but was attenuated when adjusting for overweight in the offspring. A causal inference test at 16 years further indicated that the child's own overweight is a mediator in the suggested association between maternal BMI and offspring asthma at 16 years. CONCLUSIONS AND CLINICAL RELEVANCE: Maternal BMI is associated with an increased risk of asthma, but not rhinitis, eczema or sensitization; however, overweight in the offspring seems to have a mediating role. Prevention strategies of maternal pre-pregnancy and childhood obesity might be important to reduce the prevalence of childhood asthma.

Indexed as

AsthmaBody Mass IndexEczemaRhinitisAdolescentAdultChildChild, PreschoolCohort StudiesFemaleHumansInfantOverweightPregnancyRisk FactorsSwedenallergic diseaseasthmabody mass indexchildrenmaternal obesityrhinitissensitization

Identifiers

PMID24807420
PMCPMC4296237
OpenAlexW2033250587

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.