Dataset Information

Evaluating body composition in infancy and childhood: A comparison between 4C, QMR, DXA, and ADP.

ABSTRACT:

Background

Accurate and precise methods to measure of body composition in infancy and childhood are needed.

Objectives

This study evaluated differences and precision of three methods when compared with the four-compartment (4C) model for estimating fat mass (FM).

Methods

FM of children (age 14 days to 6 years of age, N = 346) was obtained using quantitative nuclear magnetic resonance (QMR, EchoMRI-AH), air-displacement plethysmography (ADP, PeaPod, less than or equal to 8 kg, BodPod age 6 years or older), and dual-energy X-ray absorptiometry (DXA, Hologic QDR). The 4C model was computed. Correlation, concordance, and Bland-Altman analyses were performed.