Prenatal Weight Change Trajectories and Perinatal Outcomes among Twin Gestations.

ABSTRACT:

Objective

 Despite an increase in twin pregnancies in recent decades, the Institute of Medicine twin weight gain recommendations remain provisional and provide no guidance for the pattern or timing of weight change. We sought to characterize gestational weight change trajectory patterns and examine associations with birth outcomes in a cohort of twin pregnancies.

Study design

 Prenatal and delivery records were examined for 320 twin pregnancies from a maternal-fetal medicine practice in Austin, TX 2011-2019. Prenatal weights for those with >1 measured weight in the first trimester and ≥3 prenatal weights were included in analyses. Trajectories were estimated to 32 weeks (mean delivery: 33.7 ± 3.3 weeks) using flexible latent class mixed models with low-rank thin-plate spline

SUBMITTER: Nichols AR 

PROVIDER: S-EPMC10782825 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature