Association among pre-pregnancy body mass index, gestational weight gain and neonatal birth weight: a prospective cohort study in China.

ABSTRACT:

Background

This study aims to explore the relationships between pre-pregnancy body mass index (BMI), gestational weight gain (GWG), rate of GWG during the second and third trimesters (GWG_rate) and birth weight among Chinese women.

Methods

Women were enrolled by 24 hospitals in 15 different provinces in mainland China from July 25th, 2017 to 26 November 2018. Pre-pregnancy BMI, GWG and GWG_rate were calculated and divided in to different groups. The multinomial logistic regression model and restrictive cubic spline model were used to explore the relationships.

Results

Of the 3585 participants, women who were underweight, had insufficient GWG or GWG_rate had 1.853-, 1850- or 1.524-fold higher risks for delivering small-for-gestational-age

SUBMITTER: Wang Y 

PROVIDER: S-EPMC7659120 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature