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Type: Artigo de periódico
Title: Accuracy of anthropometric measurements in estimating fat mass in individuals with 21-hydroxylase deficiency
Author: Goncalves, EM
Silva, AM
Santos, DA
Lemos-Marini, SHV
Santos, AD
Mendes-dos-Santos, CT
De-Mello, MP
Guerra, G
Abstract: Objective: The use of anthropometric measurements to estimate the percentage of body fat (%BF) is easy and inexpensive. However, the accuracy of these methods in patients with 21-hydroxylase deficiency (21OHD) has not been explored. The objective of this study was to evaluate the accuracy of skinfold-based models, body mass index (BMI), and waist circumference (WC) in estimations of %BF using dual-energy X-ray absorptiometry (DXA) as the reference method in individuals with 21OHD. Methods: Fifty-four 21OHD patients (32 women and 22 men), aged 7 to 20 y, were recruited for the study. DXA was used to determine %BF; four predictive skinfold equations, BMI, and WC were assessed for accuracy in determining %BF. Results: All predictive skinfold equations were highly associated (R, range: 0.82-0.89) with DXA %BF values. In women, BMI and WC showed moderate correlations (R = 0.69 for both BMI and WC) with DXA values. In contrast, among men there was a low explanatory power for BMI (13%) and WC (4%) and high errors (BMI, 6.9%; WC, 7.4%). All predictive equations significantly underestimated %BF (range of differences, -4.1 to -8.9) compared with DXA (women, 31.3 +/- 6.1; men, 24.4 +/- 7.3), and large limits of agreement were observed (range, -15.3 to 1.7 and -15.5 to 4.2 for women and men, respectively). Conclusion: In children and adolescents with 21OHD, %BF as estimated by skinfold measurements was associated more strongly with DXA-assessed %BF than both BMI and WC. However, still, the skinfold-based assessment underestimated DXA %BF and showed moderate agreement (C) 2012 Elsevier Inc. All rights reserved.
Subject: Anthropometry
Congenital adrenal hyperplasia
Country: EUA
Editor: Elsevier Science Inc
Citation: Nutrition. Elsevier Science Inc, v. 28, n. 10, n. 984, n. 990, 2012.
Rights: fechado
Identifier DOI: 10.1016/j.nut.2011.12.014
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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