Evidence map›Paper›PMID 37974127›Full record

SynthesisBMC pediatrics2023

Association of cesarean section with asthma in children/adolescents: a systematic review and meta-analysis based on cohort studies.

Ziwei Zhong, Meiling Chen, Senjie Dai, Yu Wang, Jie Yao, Haojie Shentu, Jianing Huang, Chiyuan Yu, Hongrui Zhang, Tianyue Wang and 1 more

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC pediatrics, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.8field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Health outcomes following caesarean birth- An observational study of twins discordant for mode of delivery.European journal of obstetrics & gynecology and reproductive biology: X · 2026
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  4. Review
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  11. Review
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  16. Diverging patterns in innate immunity against respiratory viruses during a lifetime: lessons from the young and the old.European respiratory review : an official journal of the European Respiratory Society · 2024
    Review
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

11 authors at 3 institutions in 1 country.

Ziwei Zhong *Emergency Medical Center, Ningbo Yinzhou No. 2 Hospital, Ningbo, Zhejiang, China.
Meiling Chen *The Public Health College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Senjie Dai *The Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Yu WangCollege of Pharmacy, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Jie YaoThe Public Health College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Haojie ShentuThe Medical Imaging College, Hangzhou Medical College, Hangzhou, Zhejiang, China.
Jianing HuangThe Public Health College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Chiyuan YuThe Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Hongrui ZhangThe Medical Technology and Information Engineering College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Tianyue WangThe Second Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, China.
Wei RenGeneral Family Medicine, Ningbo Yinzhou No. 2 Hospital, 998 North Qianhe Road, Yinzhou District, Ningbo, 315100, Zhejiang, China. renwei1121@163.com.
Zhejiang Chinese Medical University · CNNingbo No. 2 Hospital · CNHangzhou Medical College · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhether cesarean section (CS) is a risk factor for asthma in offspring is controversial. The purpose of this study was to investigate the association between CS and asthma in children/adolescents.

methodsPubmed, Embase, Web of Science, and Cochrane Library electronic databases were searched for cohort studies on the relationship between mode of delivery and asthma in children/adolescents up to February 2023. Birth via CS was considered an exposure factor. Asthma incidence was taken as a result.

resultsThirty-five cohort studies (thirteen prospective and twenty-two retrospective cohort studies) were included. The results showed that the incidence of asthma was higher in CS offspring (odds ratio (OR) = 1.18, P < 0.001) than in the vaginal delivery (VD) group. Partial subgroup analyses showed a higher incidence of asthma in female offspring born via CS (OR = 1.26, P < 0.001) compared with the VD group, while there was no difference in males (OR = 1.07, P = 0.325). Asthma incidence was higher in CS offspring than in the VD group in Europe (OR = 1.20, P < 0.001), North America (OR = 1.15, P < 0.001), and Oceania (OR = 1.06, P = 0.008). This trend was not found in the Asian population (OR = 1.17, P = 0.102). The incidence of atopic asthma was higher in offspring born via CS (OR = 1.14, P < 0.001) compared to the VD group. The CS group had a higher incidence of persistent asthma, but the difference did not reach statistical significance (OR = 1.15, P = 0.063).

conclusionIn this meta-analysis, CS may be a risk factor for asthma in offspring children/adolescents compared with VD. The relationship between CS and asthma was influenced by sex and region.

Indexed as

AsthmaCesarean SectionAdolescentChildCohort StudiesFemaleHumansMalePregnancyProspective StudiesRetrospective StudiesAdolescentAsthmaCesarean sectionChildMeta-analysisOffspring

Identifiers

PMID37974127
PMCPMC10652517
OpenAlexW4388733347

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.