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- Title
Agreement of body adiposity index (BAI) and paediatric body adiposity index (BAIp) in determining body fat in Brazilian children and adolescents.
- Authors
De Santis Filgueiras, Mariana; Cecon, Roberta Stofeles; de Faria, Eliane Rodrigues; de Faria, Franciane Rocha; Pereira, Patrícia Feliciano; Ribeiro, Andréia Queiroz; Priore, Silvia Eloiza; de Novaes, Juliana Farias
- Abstract
<bold>Objective: </bold>To evaluate agreement of the body adiposity index (BAI) and paediatric body adiposity index (BAIp) in estimating body fat compared with dual-energy X-ray absorptiometry (DXA) and to propose cut-off points for these indices to classify excess adiposity in Brazilian children and adolescents.<bold>Design: </bold>Cross-sectional study. Measures of weight, height, hip circumference, BMI and body fat percentage (%BF) assessed by DXA were taken, and BAI and BAIp were calculated. The Bland-Altman plot was used to estimate agreement between the methods, and the receiver-operating characteristic curve to determine the cut-off points for BAI and BAIp per age and sex in comparison with DXA.<bold>Setting: </bold>Viçosa, Minas Gerais, Brazil.<bold>Subjects: </bold>Children and adolescents aged 8-19 years (n 1049).<bold>Results: </bold>Of the children and adolescents, 52·4 % were girls. BAI and BAIp had satisfactory performance by the receiver-operating characteristic curve, except for the 18-19 years age group, whose BAIp had better predictive capacity than BAI. The agreement analysis showed that BAI overestimated %BF by 2·64 %, on average, using DXA; while BAIp underestimated %BF by 3·37 %.<bold>Conclusions: </bold>BAI and BAIp showed low agreement with the body fat obtained by DXA, requiring caution when interpreting body composition data in children and adolescents.
- Subjects
CHILDHOOD obesity; ADOLESCENT obesity; BODY mass index; ANTHROPOMETRY; BLAND-Altman plot
- Publication
Public Health Nutrition, 2019, Vol 22, Issue 1, p132
- ISSN
1368-9800
- Publication type
journal article
- DOI
10.1017/S1368980018002458