ArticleBMC pregnancy and childbirth2023
Cesarean sections and early-term births according to Robson classification: a population-based study with more than 17 million births in Brazil.
Article in BMC pregnancy and childbirth, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- Primary cesarean section in Sub-Saharan Africa: A systematic review and meta-analysis using the Robson Ten-Group Classification System.PloS one · 2026Pooled it
- Implementation of the Robson classification for caesarean sections in Israel: a 10-year cross-sectional study.Israel journal of health policy research · 2025Article
- Short- and Long-Term Consequences of Late-Preterm and Early-Term Birth.Children (Basel, Switzerland) · 2025Review
- A Retrospective Analysis of the Robson Classification Implementation in a Tertiary Care Hospital in Serbia.Journal of clinical medicine · 2025Article
- Analysis of Cesarean Section Ratios by Robson Classification.Journal of obstetrics and gynaecology of India · 2024Article
- Trends in cesarean section rates in Brazil by Robson classification group, 2014-2020.Revista brasileira de enfermagem · 2024Article
- Optimizing caesarean section use and feasibility of implementing the Robson classification system: Perspectives of healthcare providers and policymakers.SAGE open medicine · 2024Article
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Authors and funding
13 authors at 6 institutions in 3 countries.
Funding
Abstract
backgroundCesarean section (CS) rates are increasing worldwide and are associated with negative maternal and child health outcomes when performed without medical indication. However, there is still limited knowledge about the association between high CS rates and early-term births. This study explored the association between CSs and early-term births according to the Robson classification.
methodsA population-based, cross-sectional study was performed with routine registration data of live births in Brazil between 2012 and 2019. We used the Robson classification system to compare groups with expected high and low CS rates. We used propensity scores to compare CSs to vaginal deliveries (1:1) and estimated associations with early-term births using logistic regression.
resultsA total of 17,081,685 live births were included. Births via CS had higher odds of early-term birth (OR 1.32; 95% CI 1.32-1.32) compared to vaginal deliveries. Births by CS to women in Group 2 (OR 1.50; 95% CI 1.49-1.51) and 4 (OR 1.57; 95% CI 1.56-1.58) showed the highest odds of early-term birth, compared to vaginal deliveries. Increased odds of an early-term birth were also observed among births by CS to women in Group 3 (OR 1.30, 95% CI 1.29-1.31), compared to vaginal deliveries. In addition, live births by CS to women with a previous CS (Group 5 - OR 1.36, 95% CI 1.35-1.37), a single breech pregnancy (Group 6 - OR 1.16; 95% CI 1.11-1.21, and Group 7 - OR 1.19; 95% CI 1.16-1.23), and multiple pregnancies (Group 8 - OR 1.46; 95% CI 1.40-1.52) had high odds of an early-term birth, compared to live births by vaginal delivery.
conclusionsCSs were associated with increased odds of early-term births. The highest odds of early-term birth were observed among those births by CS in Robson Groups 2 and 4.
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