Comparison of Traditional and New Anthropometric Indices in Children and Adolescents Whose Body Fat Percentage Analysis was Performed with Bioelectrical Impedance Analysis

Aim: The aim of this study is to investigate the predictive ability efficiency of body mass index (BMI), waist circumference, hipcircumference, waist-to-height ratio, triponderal mass index (TMI), body adiposity index (BAI), pediatric body adiposity index (BAIp),body shape index (ABSI-adolescent), body roundness index (BRI), abdominal volume index (AVI), and conicity index (CI) in forecastingoverweight/obesity and predicting percentage of body fat (PBF) in children and adolescents.Material and Methods: Children and adolescents aged 6-18 without chronic illnesses were included in the study. To assess bodycomposition, bioelectrical impedance analysis (BIA) was employed as the reference method, and the cases were categorized into twogroups: the lean/normal (Group 1) and overweight/obese (Group 2) groups. The evaluation of the data involved the use of descriptivestatistics, independent t-test, Mann-Whitney U test, and Receiver Operating Characteristic (ROC) analysis.Results: A total of 466 cases (58.6% female, 41.4% male) were included in the study. The median age of the cases was 13.2 (10.1-16.0) years. According to BIA, 10.7% of the cases (n=50) were classified as underweight, 33.7% (n=157) as normal weight, 10.9%(n=51) as overweight, and 44.6% (n=208) as obese. Overweight/obese individuals exhibited significantly higher values for BMI-SDS,waist circumference, hip circumference, waist-to-height ratio, TMI, BAI, BAIp, ABSI-adolescent, BRI, AVI, and CI (p