Association of pre-pregnancy body-mass-index and gestational weight gain with preterm singleton birth in women with cervical cerclage: a retrospective cohort study.

ABSTRACT:

Obejective

To examine the correlations of pre-pregnancy Body-Mass-Index (BMI) and Gestational Weight Gain (GWG) with preterm singleton delivery among American women with cervical cerclage.

Methods

This is a retrospective cohort study of 33822 pregnant women with cervical cerclage selected from the National Vital Statistics System (NVSS) 2009-2013 database. GWG was converted to gestational age-standardized z scores. Associations of pre-pregnancy BMI and GWG with preterm birth risk were evaluated using risk factor-adjusted log-binomial regression models.

Results

Preterm birth accounted for 10378 (30.68%) of the pregnancies in our research. Women with pre-pregnancy overweight and obesity were both associated with a significantly higher risk of preterm birth than those wi

SUBMITTER: Wang Z 

PROVIDER: S-EPMC12570681 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature