Reliability, Validity, and Diagnostic Value of a Pediatric Bioelectrical Impedance Analysis Scale

Childhood Obesity
Laura S KabiriKaty Mitchell

Abstract

Accurate body composition assessment is critical to identify children who are overfat or obese. Unlike BMI measures, bioelectrical impedance analysis (BIA) differentiates between lean and fat mass. However, bioelectrical impedance analysis has historically had questionable reliability and validity in children. The aim of this study was to determine the reliability, validity, and diagnostic value of a portable BIA scale (Tanita BF-689; Tanita Corporation, Tokyo, Japan) designed specifically for use within the pediatric population. Fifty-five children (males = 26; females = 29) had percent body fat (%BF) assessed twice using BIA and once using dual-energy X-ray absorptiometry (DEXA). Intraclass correlation coefficients (ICCs) were calculated for reliability. Mean difference and limits of agreement were calculated for convergent validity. Sensitivity/specificity for healthy, overfat, and obese classification were assessed. Test-retest ICC was 0.999 (0.999, 0.999). The ICC comparing BIA and DEXA for %BF was 0.788 (-0.167, 0.942). Mean difference between BIA and DEXA was -6.75% (limits of agreement = -0.04%; -13.46%). No gender or proportional bias was observed. Sensitivity/specificity for healthy, overfat, and obese classification ...Continue Reading

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Citations

Feb 22, 2017·International Journal of Obesity : Journal of the International Association for the Study of Obesity·A MorandiC Maffeis
Dec 19, 2017·Lymphatic Research and Biology·Ana Paula FerroElaine Caldeira de Oliveira Guirro
Feb 12, 2019·Women & Health·Pinal A PatelAnuradha V Khadilkar
Aug 7, 2019·Twin Research and Human Genetics : the Official Journal of the International Society for Twin Studies·Sara PereiraJosé Maia
Nov 7, 2018·Scientific Reports·E Danielle SimsM Constantine Samaan
Dec 31, 2019·The Journal of Rural Health : Official Journal of the American Rural Health Association and the National Rural Health Care Association·Laureen H SmithDevin Laurent
Aug 3, 2018·The Journal of School Nursing : the Official Publication of the National Association of School Nurses·Alison F Pittman
May 7, 2020·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·Camila E OrssoAndrea M Haqq
Jan 14, 2020·Journal of Pediatric Hematology/oncology·Mohsen S ElalfyAmna S A Kalifa
Jun 1, 2017·The International Journal of Behavioral Nutrition and Physical Activity·Silje SteinsbekkLars Wichstrøm
Jan 18, 2020·International Journal of Environmental Research and Public Health·Antonio Manuel Sánchez-LópezMaría José Aguilar-Cordero
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Jan 25, 2020·Medicine and Science in Sports and Exercise·Sara PereiraJosé Maia

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Methods Mentioned

BETA
X-ray

Software Mentioned

BF
SPSS

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