Evidence map›Paper›PMID 33128350›Full record

ArticleImmunity, inflammation and disease2020

Cesarean section and risk of allergies in Ecuadorian children: A cross-sectional study.

Amélie Gorris, Gabriela Bustamante, Katharina A Mayer, Tamar Kinaciyan, Gerhard J Zlabinger

Open access · goldAbstract read
In one paragraph

Article in Immunity, inflammation and disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 17% 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

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 18 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  7. Review
  8. Mode of delivery and offspring atopic dermatitis in a Swedish nationwide study.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2023
    Article
  9. Article
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 3 countries.

Amélie GorrisSchool of Medicine, Universidad San Francisco de Quito, Quito, Ecuador.ORCID 0000-0002-8818-9877
Gabriela BustamanteSchool of Medicine, Universidad San Francisco de Quito, Quito, Ecuador.ORCID 0000-0002-2227-7209
Katharina A MayerInstitute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0003-2495-790X
Tamar KinaciyanDepartment of Dermatology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-8238-2561
Gerhard J ZlabingerInstitute of Immunology, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria.ORCID 0000-0002-7478-4173
Medical University of Vienna · ATUniversidad San Francisco de Quito · ECUniversity of Minnesota · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies have shown an association between cesarean section (CS) and increased prevalence of childhood allergic diseases. While these observations have been consistent in industrialized countries, evidence from developing countries is limited.

objectiveTo assess the association between the mode of delivery and allergic diseases in children aged 3-12 years in Quito, Ecuador.

methodsIn this cross-sectional study, parents were surveyed using an anonymous, standardized questionnaire from the International Study of Asthma and Allergies in Childhood project to assess the presence of asthma, allergic rhinitis, atopic dermatitis, and food allergies in their children. The children's age, sex, birthplace, delivery mode (CS/vaginal), socioeconomic status, and ethnicity were recorded. Other parameters included gestational age, breastfeeding, smoking status during pregnancy, and parental allergic diseases.

resultsAfter adjusting for confounding factors, children delivered via CS were found to have a higher risk of wheezing (odds ratio [OR] = 4.12, 95% confidence interval [CI]: 1.43-11.89), physician-diagnosed asthma (OR = 24.06; 95% CI: 1.98-292.3), and pimples, or eczema with the itching for 6 months (OR = 2.65; 95% CI: 1.06-6.61) than children delivered vaginally. No association was found between the delivery mode and rhinitis or food allergies. After stratifying by socioeconomic status, CS was only associated with allergic disorders in children of medium/high socioeconomic backgrounds.

conclusionsAs seen in industrialized settings, children born by CS in nonindustrialized countries have an increased risk of developing allergic disorders including asthma and dermatitis, compared to those delivered vaginally.

Indexed as

AsthmaRhinitis, AllergicCesarean SectionChildChild, PreschoolCross-Sectional StudiesEcuadorFemaleHumansMaleasthmaatopic dermatitisenvironment and hygiene hypothesisfood allergyrhinitis

Identifiers

PMID33128350
PMCPMC7654393
OpenAlexW3096680669

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.