The Brazilian Journal of Infectious Diseases The Brazilian Journal of Infectious Diseases
Braz J Infect Dis 2017;21:448-56 - Vol. 21 Num.4 DOI: 10.1016/j.bjid.2017.03.015
Original article
Are traditional body fat equations and anthropometry valid to estimate body fat in children and adolescents living with HIV?
Luiz Rodrigo Augustemak de Lima, , Priscila Custódio Martins, Carlos Alencar Souza Alves Junior, João Antônio Chula de Castro, Diego Augusto Santos Silva, Edio Luiz Petroski
Universidade Federal de Santa Catarina, Centro de Desportos, Programa de Graduação em Educação Física, Florianópolis, SC, Brazil
Received 11 December 2016, Accepted 03 March 2017
Abstract

The aim of this study was to assess the validity of traditional anthropometric equations and to develop predictive equations of total body and trunk fat for children and adolescents living with HIV based on anthropometric measurements. Forty-eight children and adolescents of both sexes (24 boys) aged 7–17 years, living in Santa Catarina, Brazil, participated in the study. Dual-energy X-ray absorptiometry was used as the reference method to evaluate total body and trunk fat. Height, body weight, circumferences and triceps, subscapular, abdominal and calf skinfolds were measured. The traditional equations of Lohman and Slaughter were used to estimate body fat. Multiple regression models were fitted to predict total body fat (Model 1) and trunk fat (Model 2) using a backward selection procedure. Model 1 had an R2=0.85 and a standard error of the estimate of 1.43. Model 2 had an R2=0.80 and standard error of the estimate=0.49. The traditional equations of Lohman and Slaughter showed poor performance in estimating body fat in children and adolescents living with HIV. The prediction models using anthropometry provided reliable estimates and can be used by clinicians and healthcare professionals to monitor total body and trunk fat in children and adolescents living with HIV.

Keywords
Body fat, HIV, Skinfold thickness, Anthropometry, DXA
Braz J Infect Dis 2017;21:448-56 - Vol. 21 Num.4 DOI: 10.1016/j.bjid.2017.03.015