Evidence map›Paper›PMID 33509847›Full record

SynthesisBMJ open2021

Caesarean sections in teaching hospitals: systematic review and meta-analysis of hospitals in 22 countries.

Ilir Hoxha, Esra Zhubi, Krenare Grezda, Blerta Kryeziu, Jeta Bunjaku, Fitim Sadiku, Riaz Agahi, Daniel Adrian Lungu, Manila Bonciani, George Little

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. 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

10 authors at 3 institutions in 3 countries.

Ilir HoxhaDepartment of Community & Family Medicine, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA ilir.s.hoxha@gmail.com.ORCID 0000-0003-4262-1406
Esra ZhubiLifestylediagnostiX, Prishtina, Kosovo.
Krenare GrezdaLifestylediagnostiX, Prishtina, Kosovo.
Blerta KryeziuResearch Unit, Heimerer College, Prishtina, Kosovo.
Jeta BunjakuLifestylediagnostiX, Prishtina, Kosovo.
Fitim SadikuLifestylediagnostiX, Prishtina, Kosovo.
Riaz AgahiResearch Unit, Heimerer College, Prishtina, Kosovo.ORCID 0000-0001-5497-7886
Daniel Adrian LunguHealth and Management Laboratory (MeS Lab), Institute of Management and Department EMbeDS, Scuola Superiore Sant'Anna, Pisa, Italy.ORCID 0000-0002-8612-8384
Manila BoncianiHealth and Management Laboratory (MeS Lab), Institute of Management and Department EMbeDS, Scuola Superiore Sant'Anna, Pisa, Italy.
George LittleDepartment of Pediatrics and of Obstetrics and Gynecology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire, USA.
Kosovo Telecom (Kosovo) · XKDartmouth College · USScuola Superiore Sant'Anna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aim of this study is to determine the odds of caesarean section in all births in teaching hospitals as compared with non-teaching hospitals.

settingOver 3600 teaching and non-teaching hospitals in 22 countries. We searched CINAHL, The Cochrane Library, PubMed, sciELO, Scopus and Web of Science from the beginning of records until May 2020.

participantsWomen at birth. Over 18.5 million births.

interventionCaesarean section. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome measures are the adjusted OR of caesarean section in a variety of teaching hospital comparisons. The secondary outcome is the crude OR of caesarean section in a variety of teaching hospital comparisons.

resultsIn adjusted analyses, we found that university hospitals have lower odds than non-teaching hospitals (OR=0.66, 95% CI 0.56 to 0.78) and other teaching hospitals (OR=0.46, 95% CI 0.24 to 0.89), and no significant difference with unspecified teaching status hospitals (OR=0.92, 95% CI 0.80 to 1.05, τ2=0.009). Other teaching hospitals had higher odds than non-teaching hospitals (OR=1.23, 95% CI 1.12 to 1.35). Comparison between unspecified teaching hospitals and non-teaching hospitals (OR=0.91, 95% CI 0.50 to 1.65, τ2=1.007) and unspecified hospitals (OR=0.95, 95% CI 0.76 to 1.20), τ2<0.001) showed no significant difference. While the main analysis in larger sized groups of analysed studies reveals no effect between hospitals, subgroup analyses show that teaching hospitals carry out fewer caesarean sections in several countries, for several study populations and population characteristics.

conclusionsWith smaller sample of participants and studies, in clearly defined hospitals categories under comparison, we see that university hospitals have lower odds for caesarean. With larger sample size and number of studies, as well as less clearly defined categories of hospitals, we see no significant difference in the likelihood of caesarean sections between teaching and non-teaching hospitals. Nevertheless, even in groups with no significant effect, teaching hospitals have a lower or higher likelihood of caesarean sections in several analysed subgroups. Therefore, we recommend a more precise examination of forces sustaining these trends. PROSPERO REGISTRATION NUMBER: CRD42020158437.

Indexed as

Cesarean SectionHospitals, TeachingParturitionFemaleHumansPregnancyProspective StudiesRetrospective Studiesobstetricspublic healthstatistics & research methods

Identifiers

PMID33509847
PMCPMC7845681
OpenAlexW3122420761

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.