Evidence map›Paper›PMID 37971073›Full record

ArticleRevista de saude publica2023

Characteristics of women who underwent one or more previous cesarean sections according to Nascer no Brasil.

Marina Barreto Alvarenga, Silvana Granado Nogueira da Gama, Marcos Nakamura-Pereira

Abstract read
In one paragraph

Article in Revista de saude publica, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

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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

1 citing paper in PubMed.

  1. Cesarean delivery on maternal request in Brazil: an analysis based on the perceptions of survivors of the placenta accreta spectrum.Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia · 2025
    Observational
4 · The record

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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

3 authors.

Marina Barreto AlvarengaFundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sérgio Arouca. Programa de Epidemiologia em Saúde Pública, Rio de Janeiro, RJ, Brasil.ORCID http://orcid.org/0000-0003-1133-1924
Silvana Granado Nogueira da GamaFundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sérgio Arouca. Departamento de Epidemiologia e Métodos Quantitativos em Saúde, Rio de Janeiro, RJ, Brasil.ORCID http://orcid.org/0000-0002-9200-0387
Marcos Nakamura-PereiraFundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sérgio Arouca. Programa de Epidemiologia em Saúde Pública, Rio de Janeiro, RJ, Brasil.ORCID http://orcid.org/0000-0002-4231-0205

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo descriptively analyze Brazilian parturient women who underwent previous cesarean section and point out the factors associated with Vaginal Birth After Cesarean (VBAC) in Brazil.

methodsThe study used data from women with one, two, or three or more cesarean sections from the survey Nascer no Brasil (Birth in Brazil). Differences between categories were assessed through the chi-square test (χ2). Variables with significant differences (p < 0.05) were incorporated into logistic regression.

findingsOut of the total of 23,894 women, 20.9% had undergone a previous cesarean section. The majority (85.1%) underwent another cesarean section, with 75.5% occurring before the onset of labor. The rate of Vaginal Birth After Cesarean (VBAC) was 14.9%, with a success rate of 60.8%. Women who underwent three or more cesarean sections displayed greater social vulnerability. The chances of VBAC were higher among those who opted for a vaginal birth towards the end of gestation, had a prior vaginal birth, underwent labor induction, were admitted with over 4 centimeters of dilation, and without partner. Receiving care from the private health care system, having two or more prior cesarean sections, obstetric complications, and deciding on cesarean delivery late in gestation reduced the chances of VBAC. Age group, educational background, prenatal care adequacy, and the reason for the previous cesarean section did not result in significant differences.

conclusionThe majority of women who underwent a previous cesarean section in Brazil are directed towards another surgery, and a higher number of cesarean sections is linked to greater social inequality. Factors associated with VBAC included choosing vaginal birth towards the end of gestation, having had a previous vaginal birth, higher cervical dilation upon admission, induction, assistance from the public health care system, absence of obstetric complications, and without a partner. Efforts to promote VBAC are necessary to reduce overall cesarean rates and their repercussions on maternal and child health.

Indexed as

Labor, ObstetricVaginal Birth after CesareanBrazilCesarean SectionChildFemaleHumansPregnancyRetrospective Studies

Identifiers

PMID37971073
PMCPMC10681529

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