Body adiposity index performance in estimating body fat in a sample of severely obese Brazilian patients
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Citações na Scopus
16
Tipo de produção
article
Data de publicação
2015
Título da Revista
ISSN da Revista
Título do Volume
Editora
BIOMED CENTRAL LTD
Autores
HORIE, Lilian Mika
HEYMSFIELD, Steven B.
Citação
NUTRITION JOURNAL, v.14, article ID 130, 7p, 2015
Resumo
Background/objectives: The body adiposity index (BAI) estimates the amount of body fat (BF) in humans. In Mexican-American and African-American populations, BAI has performed better than body mass index (BMI). The aim of this study was to evaluate the performance of BAI in estimating percentage (BF%) in severely obese Brazilian patients, with air displacement plethysmography (ADP) used as the reference method. Subjects/methods: Estimation of BF% by ADP, anthropometric measurements (height, abdominal and hip circumferences, body weight, and BMI) and BAI calculation were performed in 72 obese subjects (BMI >= 30 kg/m(2)) aged 30-55 years. Results: The mean BF% estimates +/- standard deviation were 52.1 +/- 5.7 % for ADP and 47.7 +/- 7.4 % for BAI, with a positive Pearson correlation (r(p) = 0.66) and a positive Lin's concordance correlation (r(c) = 0.479) observed between these methods. The 95 % limits of individual agreement between BAI and ADP ranged from -5.769 % to 16.036 %, with BAI exhibiting an average positive bias of 5.13 % compared to the reference method. For each studied variable, BAI exhibited a systematic bias, as evidenced by a tendency for low BF% values to be overestimated. Conclusion: For Brazilian patients with severe obesity, BAI does not provide an accurate estimate of BF%.
Palavras-chave
Obesity, Body fat, Body composition, Nutritional assessment, Body adiposity index, Air displacement plethysmography
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