ArticleObesity (Silver Spring, Md.)2025
Impact of maternal prepregnancy body mass index on neonatal outcomes following extremely preterm birth.
Article in Obesity (Silver Spring, Md.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Influence of Preconception Maternal BMI and Gestational Weight Gain on Perinatal Outcomes.Cureus · 2026Article
- The impact of pre-pregnancy body mass index and maternal diseases on the offspring outcomes in preterm infants < 32 weeks: five-year retrospective mediation analysis.BMC pregnancy and childbirth · 2026Article
- Dual-center prospective validation of an early second-trimester predictive model integrating BMI trajectories and pathophysiological biomarkers for gestational diabetes risk stratification.Journal of diabetes investigation · 2026Article
- Impact of maternal prepregnancy body mass index on neonatal outcomes following extremely preterm birth.Obesity (Silver Spring, Md.) · 2025Article
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Authors and funding
12 authors.
Funding
Abstract
objectiveExtremes of prepregnancy maternal BMI increase neonatal mortality and morbidity at term. They also increase the risk of extremely preterm (EP, i.e., <27 weeks' gestational age) births. However, the association between maternal BMI and outcomes for EP babies is poorly understood.
methodsWe used a cross-country design, bringing together the following three population-based, prospective, national EP birth cohorts: EXPRESS (Sweden, 2004-2007); EPICure 2 (UK, 2006); and EPIPAGE 2 (France, 2011). We included all singleton births at 22 to 26 weeks' gestational age with a live fetus at maternal hospital admission. Our exposure was maternal prepregnancy BMI, i.e., underweight, reference, overweight, or obesity. Odds ratios (OR) for survival without severe neonatal morbidity to hospital discharge according to maternal BMI were calculated using logistic regression.
resultsA total of 1396 babies were born to mothers in the reference group, 140 to those with underweight, 719 to those with overweight, 556 to those with obesity, and 445 to those with missing BMI information. There was no difference in survival without major neonatal morbidity (reference, 22%; underweight, 26%, OR, 1.31, 95% CI: 0.82-2.08; overweight, 23%, OR, 1.00, 95% CI: 0.77-1.29; obesity, 19%, OR, 0.94, 95% CI: 0.70-1.25).
conclusionsNo associations were seen between maternal BMI and outcomes for EP babies.
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