Utility of Body Mass Index in Identifying Excess Adiposity in Youth Across the Obesity Spectrum.

ABSTRACT:

Objectives

To determine the proportion of youth within a given body mass index (BMI) obesity category with excess adiposity using dual energy x-ray absorptiometry (DXA). Furthermore, to examine whether mean differences in cardiometabolic risk factors based upon various excess adiposity cutpoints were present.

Study design

DXA data from the National Health and Nutrition Examination Survey 1999-2006 (n = 10 465; 8-20 years of age) were used for this analysis. Obesity categories were defined using Centers for Disease Control and prevention definitions for age and sex. Excess adiposity was defined using cohort-specific cutpoints at 75th, 85th, and 90th percentiles of DXA body fat (%) by age and sex using quantile regression models. Additionally, we examined differences in cardio

SUBMITTER: Ryder JR 

PROVIDER: S-EPMC5905327 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature