학술논문

Impact of maternal body mass index and gestational weight gain on pregnancy complications: an individual participant data meta‐analysis of European, North American and Australian cohorts
Document Type
article
Source
BJOG An International Journal of Obstetrics & Gynaecology. 126(8)
Subject
Obesity
Contraception/Reproduction
Diabetes
Preterm
Low Birth Weight and Health of the Newborn
Infant Mortality
Cardiovascular
Clinical Research
Perinatal Period - Conditions Originating in Perinatal Period
Prevention
Nutrition
Pediatric
Aetiology
3.1 Primary prevention interventions to modify behaviours or promote wellbeing
2.1 Biological and endogenous factors
Prevention of disease and conditions
and promotion of well-being
Metabolic and endocrine
Reproductive health and childbirth
Good Health and Well Being
Adult
Australia
Birth Weight
Body Mass Index
Cohort Studies
Europe
Female
Gestational Age
Gestational Weight Gain
Humans
Infant
Newborn
North America
Odds Ratio
Overweight
Pregnancy
Pregnancy Complications
Risk Factors
Birthweight
body mass index
pregnancy complications
preterm birth
weight gain
Medical and Health Sciences
Obstetrics & Reproductive Medicine
Language
Abstract
ObjectiveTo assess the separate and combined associations of maternal pre-pregnancy body mass index (BMI) and gestational weight gain with the risks of pregnancy complications and their population impact.DesignIndividual participant data meta-analysis of 39 cohorts.SettingEurope, North America, and Oceania.Population265 270 births.MethodsInformation on maternal pre-pregnancy BMI, gestational weight gain, and pregnancy complications was obtained. Multilevel binary logistic regression models were used.Main outcome measuresGestational hypertension, pre-eclampsia, gestational diabetes, preterm birth, small and large for gestational age at birth.ResultsHigher maternal pre-pregnancy BMI and gestational weight gain were, across their full ranges, associated with higher risks of gestational hypertensive disorders, gestational diabetes, and large for gestational age at birth. Preterm birth risk was higher at lower and higher BMI and weight gain. Compared with normal weight mothers with medium gestational weight gain, obese mothers with high gestational weight gain had the highest risk of any pregnancy complication (odds ratio 2.51, 95% CI 2.31- 2.74). We estimated that 23.9% of any pregnancy complication was attributable to maternal overweight/obesity and 31.6% of large for gestational age infants was attributable to excessive gestational weight gain.ConclusionsMaternal pre-pregnancy BMI and gestational weight gain are, across their full ranges, associated with risks of pregnancy complications. Obese mothers with high gestational weight gain are at the highest risk of pregnancy complications. Promoting a healthy pre-pregnancy BMI and gestational weight gain may reduce the burden of pregnancy complications and ultimately the risk of maternal and neonatal morbidity.Tweetable abstractPromoting a healthy body mass index and gestational weight gain might reduce the population burden of pregnancy complications.