Relative Fat Mass as an estimator of whole-body fat percentage among children and adolescents: A cross-sectional study using NHANES.

ABSTRACT: We evaluated the ability of the Relative Fat Mass (RFM) to estimate whole-body fat percentage among children and adolescents who participated in the National Health and Nutrition Examination Survey from 1999 through 2006 (n?=?10,390). The RFM equation for adults (64 - (20 × height/waist circumference)?+?(12 × sex)) may be used for adolescents 15 to 19 years of age. For children and adolescents 8 to 14 years of age, we suggest a modified RFM equation, named as the RFMp (RFM pediatric): 74 - (22 × height/waist circumference)?+?(5 × sex). In both equations, sex equals 0 for boys and 1 for girls. RFMp was more accurate than BMI to estimate whole-body fat percentage (measured by dual energy X-ray absorptiometry, DXA) among girls (percentage of estimates that were <20% of measured body fat percentage, 88.2% vs. 85.7%; P?=?0.027) and boys 8 to 14 years of age (83.4% vs. 71.0%; P?

SUBMITTER: Woolcott OO 

PROVIDER: S-EPMC6813362 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature