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- Title
Diagnostic performance of anthropometric indicators used to assess excess body fat in adolescence.
- Authors
Neves Antunes, Nelma Maria; Fagundes Silveira, Marise; Veloso Silva, Rosângela Ramos; Brant Rocha, Josiane Santos; Santos Lima de Oliveira, Fernanda Piana; Souza Ruas, Sélen Jaqueline; Maia Borborema, Fabiana Aparecida; Pinto Duarte, Jose Henrique; Oliveira Rodrigues, Carolina Amaral; Santos Figueiredo Brito, Maria Fernanda; Prates Caldeira, Antônio; de Pinho, Lucinéia
- Abstract
Objective: To compare the performance of anthropometric indicators that identify excess body fat (BF) in adolescents. Methods: This is a methodological study that used probability cluster sampling through school and class draws. Data collection included sociodemographic characteristics and anthropometric measures. Body mass index (BMI), waist-to-height ratio (WtHR), conicity index (C index), and waist circumference (WC) were calculated. Body fat percentage (BF%) was calculated from skinfold thickness and used as the gold standard. To analyze the data, descriptive statistics, Student’s t-test, Receiver Operating Characteristic (ROC) curve, and Youden’s index were used, in addition to correlation coefficient calculation between the indicators and BF%. Results: A total of 997 adolescents enrolled in municipal secondary schools participated in the study. By calculating the BMI, we found that 10.6% of adolescents were overweight, and 4.7% were obese. BMI, WC, and WtHR had the highest accuracy to predict body fatness. All the anthropometric indicators had higher specificity than sensitivity to diagnose excess BF in males. WC had the highest sensitivity in both genders. C index had the smallest area under the ROC curve and the lowest sensitivity in both genders, but its specificity was equivalent to that of the other indicators. Conclusions: BMI, WtHR, and WC were the best anthropometric indicators to predict excess BF in adolescents and had the best correlation coefficients. These tools can be considered in the screening to detect excess BF in adolescents.
- Subjects
FAT; RECEIVER operating characteristic curves; ADOLESCENCE; BODY mass index; WAIST circumference
- Publication
Revista Paulista de Pediatria, 2023, Vol 41, p1
- ISSN
0103-0582
- Publication type
Article
- DOI
10.1590/1984-0462/2023/41/2021189