Body mass index at 11-13 weeks' gestation and pregnancy complications in a Southern Chinese population: a retrospective cohort study

The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
Piya ChaemsaithongLiona Chiu Yee Poon

Abstract

To assess the association between body mass index (BMI) and adverse pregnancy outcomes. A multicentre retrospective cohort study was conducted in three hospitals in Hong Kong including 67,248 women with singleton pregnancy at 11-13 weeks between 2010 and 2016. The relationship between maternal BMI and (1) miscarriage or stillbirth, (2) development of preeclampsia (PE), (3) gestational hypertension (GH), (4) development of gestational diabetes mellitus (GDM), (5) spontaneous preterm delivery (sPTD) <34 and <37 weeks, (6) delivery of a small for gestational age (SGA) or large for gestational age (LGA) neonate, (7) caesarean section (CS), and (8) postpartum haemorrhage (PPH) were examined after adjusting for confounding factors. The prevalence of maternal overweight (BMI 25-29.9 kg/m2) and obesity (BMI ≥30 kg/m2) were 13.2% and 2.9%, respectively. Women with a BMI ≥30 kg/m2 were nine times more likely to develop GH (95%CI 7.3-11.7), five times more likely to develop PE (95%CI 4.3-6.8) and GDM (95%CI 5.0-6.5) and 1.5-2 times more likely to deliver SGA/LGA neonate. sPTD, required delivery by CS and developed PPH, than those with a BMI of 18.5-22.9 kg/m2, and that maternal underweight (BMI <18.5 kg/m2) significantly reduced the risk ...Continue Reading

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Citations

Jul 30, 2020·The Journal of Maternal-fetal & Neonatal Medicine : the Official Journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians·Rui-Yuan ZhangRichard Saffery
Jun 11, 2021·The Journal of Obstetrics and Gynaecology Research·Louise HarveyEline M van der Beek

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