Gestational body weight gain and risk of low birth weight or macrosomia in women of Japan: a nationwide cohort study.

ABSTRACT:

Objective

Both maternal prepregnancy body mass index (BMI) and gestational weight gain (GWG) influence maternal and pediatric outcomes. We sought to clarify the impact of prepregnancy BMI-specific GWG and its patterns on the risk of low birth weight (LBW) or macrosomia using data from a large nationwide study in Japan.

Methods

This cohort study (n = 98,052) used data from the Japan Environment and Children's Study (JECS). The outcome variables in this study were LBW and macrosomia. We stratified the subjects into groups according to prepregnancy BMI.

Results

GWG from pre-pregnancy to the first trimester had a small effect on the risk of LBW and macrosomia. From the first to second trimesters, insufficient GWG was associated with the risk of LBW, and from the second tr

SUBMITTER: Uchinuma H 

PROVIDER: S-EPMC8606312 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature