Evidence map›Paper›PMID 33388795›Full record

SynthesisSocial psychiatry and psychiatric epidemiology2021

The association of birth by caesarean section and cognitive outcomes in offspring: a systematic review.

Julie A Blake, Madeleine Gardner, Jake Najman, James G Scott

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Social psychiatry and psychiatric epidemiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
3.0field-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

12 citing papers in PubMed, 23 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

4 authors at 2 institutions in 1 country.

Julie A BlakeQIMR Berghofer Medical Research Institute, 300 Herston Rd, Herston, QLD, 4006, Australia.
Madeleine GardnerQIMR Berghofer Medical Research Institute, 300 Herston Rd, Herston, QLD, 4006, Australia.
Jake NajmanSchool of Public Health, Faculty of Medicine, The University of Queensland, Herston, QLD, Australia.
James G ScottQIMR Berghofer Medical Research Institute, 300 Herston Rd, Herston, QLD, 4006, Australia. james.scott@qimrberghofer.edu.au.ORCID http://orcid.org/0000-0002-0744-0688
The University of Queensland · AUQIMR Berghofer Medical Research Institute · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeStudies have reported children born by caesarean section are more likely to have lower cognitive outcomes compared to those born by vaginal delivery. This paper reviews the literature examining caesarean birth and offspring cognitive outcomes.

methodsA systematic search for observational studies or case-control studies that compared cognitive outcomes of people born by caesarean section with those born by vaginal delivery was conducted in six databases (Medline, PubMed, EMBASE, PsychInfo, CINAHL, Web of Science) from inception until December 2019 according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies were assessed for quality and a narrative synthesis was undertaken considering the evidence for a causal relationship according to the Bradford Hill Criteria.

resultsA total of seven studies were identified. Of these, four found a significant association between elective and emergency caesarean birth and reduction in offspring cognitive performance as measured by school performance or validated cognitive testing. Three studies found no association. There was variability in the quality of the studies, assessment of the reason for caesarean section (emergency vs elective), measurement of outcomes and adjustment for confounding factors.

conclusionThe evidence of an association between CS birth and lower offspring cognitive functioning is inconsistent. Based on currently available data, there is no evidence that a causal association exists. To better examine this association, future studies should (a) distinguish elective and emergency caesareans, (b) adequately adjust for confounding variables and (c) have valid outcome measures of cognition.

Indexed as

Cesarean SectionDelivery, ObstetricCase-Control StudiesChildCognitionElective Surgical ProceduresFemaleHumansPregnancyBirthChild developmentIntelligenceNeurodevelopmentObstetric complicationsYouth

Identifiers

PMID33388795
OpenAlexW3120445761

What OpenQuestion holds

Textmetadata
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.