Waist-to-height ratio index or the prediction of overweight in children

To identify a low-cost abdominal adiposity index that has a higher accuracy in predicting excess weight in children aged four to seven years old. A cross-sectional study with a sample of 257 children aged 4 to 7 years old. Indicators of abdominal adiposity assessed were: waist circumference (WC), wa...

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Bibliographic Details
Authors: Vieira, Sarah Aparecida, Ribeiro, Andréia Queiroz, Hermsdorff, Helen Hermana Miranda, Pereira, Patrícia Feliciano, Priore, Silvia Eloiza, Franceschini, Sylvia do Carmo Castro
Format: article
Status:Published version
Publication Date:2017
Country:Brasil
Institution:Universidade Federal de Viçosa (UFV)
Repository:LOCUS Repositório Institucional da UFV
Language:English
OAI Identifier:oai:locus.ufv.br:123456789/16533
Online Access:http://dx.doi.org/10.1590/1984-0462/;2018;36;1;00002
http://www.locus.ufv.br/handle/123456789/16533
Access Level:Open access
Keyword:Child
Overweight
Obesity
Abdominal obesity
ROC curve
Description
Summary:To identify a low-cost abdominal adiposity index that has a higher accuracy in predicting excess weight in children aged four to seven years old. A cross-sectional study with a sample of 257 children aged 4 to 7 years old. Indicators of abdominal adiposity assessed were: waist circumference (WC), waist-to-height ratio (WHR) and central fat percentage (measured by dual energy X-ray absorptiometry - DEXA). Overweight children were classified using body mass index by age (BMI/age). In the analysis, the prevalence ratio (PR) using Poisson regression with a robust variance was estimated, and a receiver operating characteristic (ROC) curve was built, with a statistical significance of p<0.05. The prevalence of overweight children was 24.9% and a higher median of all abdominal adiposity indicators was observed in the overweight group. Children with increased values of WC (PR=4.1; 95%CI 2.86-5.86), WHR (PR=5.76; 95%CI 4.14-8.02) and a central fat percentage (PR=2.48; 95%CI 1.65-3.73) had a higher prevalence of being overweight. Using the ROC curve analysis, the WHR index showed a higher area under the curve, when compared to the WC and to the central fat percentage estimated by DEXA for predicting the classification of being overweight. Given the results, WHR is suggested for the screening of overweight children.

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