Classifying Gestational Weight Gain Trajectories Using the SITAR Growth Model.

ABSTRACT:

Background

Gestational weight gain is often characterized by the total amount of weight gained during pregnancy, however, the pattern of gain may be an important determinant of health outcomes. The SITAR (Super Imposition by Translation And Rotation) model has been used to describe childhood growth trajectories and has appeal because of the biological interpretability of its parameters. The objective of this study was to determine the feasibility of applying this model to gestational weight gain trajectories.

Methods

The study cohort included 3470 normal-weight, overweight, and obese women delivering at Magee-Womens Hospital in Pittsburgh, Pennsylvania, 1998 to 2010. We applied the SITAR model, a non-linear mixed effects model, to serial prenatal weight gain measurements in

SUBMITTER: Riddell CA 

PROVIDER: S-EPMC5323272 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature