Association between gestational weight gain and preterm birth and post-term birth: a longitudinal study from the National Vital Statistics System database.

ABSTRACT:

Background

To evaluate the association between gestational weight gain (GWG) and preterm birth and post-term birth.

Methods

This longitudinal-based research studied singleton pregnant women from the National Vital Statistics System (NVSS) (2019). Total GWG (kg) was converted to gestational age-standardized z scores. The z-scores of GWG were divided into four categories according to the quartile of GWG, and the quantile 2 interval was used as the reference for the analysis. Univariate and multivariate logistic regression analyses were performed to investigate the association between GWG and preterm birth, post-term birth, and total adverse outcome (preterm birth + post-term birth). Subgroup analysis stratified by pre-pregnancy body mass index (BMI) was used to estimate associ

SUBMITTER: Zhu Y 

PROVIDER: S-EPMC10026488 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature