ArticleBMJ open2017
Maternal body mass index and the prevalence of spontaneous and elective preterm deliveries in an Irish obstetric population: a retrospective cohort study.
Article in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.
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Who cites it
18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 35 citations in OpenAlex.
- Maternal pre-pregnancy body mass index and risk of preterm birth: a collaboration using large routine health datasets.BMC medicine · 2024Pooled it
- Global trends in prevalence of maternal overweight and obesity: A systematic review and meta-analysis of routinely collected data retrospective cohorts.International journal of population data science · 2024Pooled it
- Socioeconomic inequalities and adverse pregnancy outcomes in the UK and Republic of Ireland: a systematic review and meta-analysis.BMJ open · 2021Pooled it
- Incidence, surgical management, and in-hospital mortality of osteoporotic hip fractures in Chile, 2001-2019.Archives of osteoporosis · 2026Article
- Reducing the Rate of Premature Births through Early Diagnosis and Pregnancy-Adapted Treatment of Hypothyroidism.Geburtshilfe und Frauenheilkunde · 2023Article
- Double burden of malnutrition and its associated factors among women in low and middle income countries: findings from 52 nationally representative data.BMC public health · 2023Article
- Epidemiology of pre-pregnancy body mass index (BMI) among mothers in Abu Dhabi, the United Arab Emirates.Frontiers in global women's health · 2022Article
- Evaluation of maternal and perinatal outcomes in pregnancy with high BMI.Irish journal of medical science · 2021Article
- Associations of pre-pregnancy impaired fasting glucose and body mass index among pregnant women without pre-existing diabetes with offspring being large for gestational age and preterm birth: a cohort study in China.BMJ open diabetes research & care · 2021Article
- Perinatal Outcomes and Risk Factors for Preterm Birth in Twin Pregnancies in a Chinese Population: A Multi-center Retrospective Study.Frontiers in medicine · 2021Article
- The Role of Innate Immune System in the Human Amniotic Membrane and Human Amniotic Fluid in Protection Against Intra-Amniotic Infections and Inflammation.Frontiers in immunology · 2021Review
- Dysregulation of bile acids increases the risk for preterm birth in pregnant women.Nature communications · 2020Article
- The relationship between maternal body mass index and pregnancy outcomes in twin compared with singleton pregnancies.International journal of obesity (2005) · 2020Article
- Mid-gestation serum lipidomic profile associations with spontaneous preterm birth are influenced by body mass index.PloS one · 2020Article
- Maternal and severe anaemia in delivering women is associated with risk of preterm and low birth weight: A cross sectional study from Jharkhand, India.One health (Amsterdam, Netherlands) · 2019Article
- Maternal short stature and under-weight status are independent risk factors for preterm birth and small for gestational age in rural Bangladesh.European journal of clinical nutrition · 2019Article
- Preterm birth in evolutionary context: a predictive adaptive response?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019Review
- Diet and Lifestyle Before and During Pregnancy - Practical Recommendations of the Germany-wide Healthy Start - Young Family Network.Geburtshilfe und Frauenheilkunde · 2018Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo estimate the association between maternal body mass index (BMI) and risk of spontaneous preterm delivery (sPTD) and elective preterm delivery (ePTD) in singleton and multiple pregnancies.
designRetrospective cohort study.
settingElectronic records of all deliveries from 2009 through 2013 in a tertiary university hospital were abstracted for demographic and obstetrical information.
participantsA total of 38 528 deliveries were included. Participants with missing data were excluded from the study. BMI was calculated from the measurement of height and weight at the first prenatal visit and categorised. Sonographic confirmation of gestational age was standard. OUTCOME MEASURES: Primary outcomes, sPTD and ePTD in singleton and multiple pregnancies, were evaluated by multinomial logistic regression analyses, stratified by parity, controlling for confounding variables.
resultsOverall rate of PTD was 5.9%, from which 2.7% were sPTD and 3.2% ePTD. The rate of PTD was 50.4% in multiple pregnancies and 5.0% in singleton pregnancies. The risk of sPTD was increased in obese nulliparas (adjusted OR (aOR) 2.8, 95% CI 1.7 to 4.4) and underweight multiparas (aOR 2.2, 95% CI 1.3 to 3.8). The risk of ePTD was increased in underweight nulliparas (aOR 1.8; 95% CI 1.04 to 3.4) and severely obese multiparas (aOR 1.4, 95% CI 1.02 to 3.8).Severe obesity increased the risk of both sPTD (aOR 1.4; 95% CI 1.01 to 2.1) and ePTD (aOR 1.4; 95% CI 1.1 to 1.8) in singleton pregnancies. Obesity did not influence the rate of either sPTD or ePTD in multiple pregnancies.
conclusionMaternal obesity is an independent risk factor for PTD in singleton pregnancies but not in multiple pregnancies. Obesity and nulliparity increase the risk of sPTD, whereas obesity and multiparity increase the risk of ePTD.
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