Association Between Pre-Pregnancy Body Mass Index and Miscarriage in an Assisted Reproductive Technology Population: A 10-Year Cohort Study.

ABSTRACT:

Objective

To investigate the association between pre-pregnancy body mass index (BMI) and miscarriages in women who required assisted reproductive technology (ART) for conception.

Methods

A retrospective cohort study was conducted using a 10-year (2006-2015) sample of 14,994 pregnancy cycles with ART treatment in Northwest Women's and Children's Hospital, Xi'an, China. The effects of women's BMI before pregnancy on early miscarriage and miscarriage were assessed using generalized estimating equation models.

Results

The risks of early miscarriage and miscarriage were higher in the obese group than in the normal weight group [early miscarriage: relative risk (RR) = 1.36, confidence interval (CI): 1.12-1.65; miscarriage: RR = 1.40, 95% CI: 1.17-1.68]. Pre-pregnancy underw

SUBMITTER: Qu P 

PROVIDER: S-EPMC8242335 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature