Observational studyBMJ open2020
Association between uterine contractions before elective caesarean section and transient tachypnoea of the newborn: a retrospective cohort study.
Observational study in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
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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.
The trial behind it
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Who cites it
3 citing papers in PubMed, 7 citations in OpenAlex.
- Covariate selection strategies and estimands - a review of current practice of risk factor analysis from a causal perspective.BMC medical research methodology · 2025Review
- Caesarean section and respiratory system disorders in newborns.European journal of obstetrics & gynecology and reproductive biology: X · 2024Review
- Neonatal outcomes associated with mode of subsequent birth after a previous caesarean section in a first pregnancy: a Swedish population-based register study between 1999 and 2015.BMJ paediatrics open · 2022Article
Corrections and comments
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveWe evaluated the association between the presence of predelivery uterine contractions and transient tachypnoea of the newborn (TTN) in women undergoing an elective caesarean section.
designA retrospective cohort study.
settingNational Hospital Organization Kofu National Hospital, which is a community hospital, between January 2011 and May 2019.
participantsThe study included 464 women who underwent elective caesarean section. The exclusion criteria were missing data, twin pregnancy, neonatal asphyxia, general anaesthesia and elective caesarean section before term. PRIMARY AND SECONDARY OUTCOME MEASURES: Patients were grouped according to the presence or absence of uterine contractions on a 40-min cardiotocogram (CTG) performed within 6 hours before caesarean delivery. We performed a multivariable logistic regression analysis to examine the association between predelivery uterine contractions and TTN.
resultsThe incidence of TTN was 9.9% (46/464), and 38.4% (178/464) of patients had no uterine contraction. The absence of uterine contractions was significantly associated with an increased risk of TTN (adjusted OR 2.04; 95% CI 1.09 to 3.82) after controlling for gestational diabetes mellitus, small for gestational age, male sex and caesarean section at 37 weeks.
conclusionsAccurate risk stratification using a CTG could assist in the management of infants who are at risk of developing TTN.
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