Use of accelerometer data in prediction equations for capturing implausible dietary intakes in adolescents.

ABSTRACT:

Background

Reporting errors have been quantified in epidemiologic studies by comparing reported intakes with predicted energy requirements (pERs). Several studies lacking measures of physical activity level (PAL) assigned low-active levels to obtain pERs.

Objective

We applied objective physical activity measures to current methods to quantify dietary reporting errors and compared associations with anthropometric and dietary variables among plausible and implausible reporters.

Design

This study included 2868 adolescents with an average age of 13 y. Three-day dietary records, accelerometers, and dual-energy X-ray absorptiometry were used to assess diet, activity, and body composition, respectively. Three variations of physical activity coefficients were used: 1) assigni

SUBMITTER: Noel SE 

PROVIDER: S-EPMC2980968 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature