Objective Systematic review and meta-analysis conducted to investigate the effect of
stratified pre-pregnancy maternal body mass index on twenty maternal and fetal/neonatal …

Background There is a substantial variation in rates of preterm delivery between different
parts of the world. The understanding of these variations, as well as the biological …

Importance Preterm birth is a leading cause of infant mortality, morbidity, and long-term
disability, and these risks increase with decreasing gestational age. Obesity increases the …

Objective To examine whether an association exists between maternal dietary patterns and
risk of preterm delivery. Design Prospective cohort study. Setting Norway, between 2002 …

OBJECTIVE: To investigate whether prepregnancy obesity is associated with adverse
pregnancy outcomes among women without chronic disease. METHODS: Singleton …

Objective To determine recent trends in maternal prepregnancy body mass index (BMI) and
to quantify its association with birth and maternal outcomes. Methods A population-based …

Background Findings from studies examining risk of preterm birth associated with elevated
prepregnancy body mass index (BMI) have been inconsistent. Methods Within a large …

Morbidly obese (Class III, body mass index [BMI]≥ 40 kg m− 2) women constitute 8% of
reproductive‐aged women and are an increasing proportion; however, their pregnancy risks …

Background Physical activity has been inconsistently associated with risk of preterm birth,
and the strength of the association and the shape of the dose–response relationship needs …

Background The association between maternal obesity and preterm birth remains
controversial and inconclusive, and the effects of gestational diabetes mellitus (GDM) and …