Comparison of methods for interpolating gestational weight gain between clinical visits in twin and singleton pregnancies.

ABSTRACT:

Purpose

Researchers are interested in studying longitudinal patterns of gestational weight gain, yet this requires daily/weekly weights, and maternal weight is measured only during prenatal visits. We evaluated the relative accuracy and precision of methods for estimating maternal weight gain between prenatal visits among twin and singleton pregnancies.

Methods

We analyzed cohorts of dichorionic twin and singleton pregnancies delivered from 1998-2013 in Pittsburgh, Pennsylvania. We mimicked a typical study by retaining pre-pregnancy, first prenatal visit, glucose screening visit, and delivery weights, using these to fit interpolation models, estimating weight throughout pregnancy using 16 different methods, and calculating the difference in kilograms between predicted and me

SUBMITTER: Dimitris MC 

PROVIDER: S-EPMC8355187 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature