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

Yıl 2024, , 79 - 87, 29.04.2024

Yavuz Özer , Didem Güneş Kaya

https://doi.org/10.25048/tudod.1419220

Öz

Aim: The aim of this study is to investigate the predictive ability efficiency of body mass index (BMI), waist circumference, hip
circumference, 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 forecasting
overweight/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 body
composition, bioelectrical impedance analysis (BIA) was employed as the reference method, and the cases were categorized into two
groups: the lean/normal (Group 1) and overweight/obese (Group 2) groups. The evaluation of the data involved the use of descriptive
statistics, 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<0.05). When
referencing bioelectrical impedance analysis, BAIp [area under the curve (AUC) =0.980, 95% confidence interval (CI)=0.959-1.000,
p=0.010], BMI-SDS (AUC=0.968, 95% CI=0.948-1.000, p=0.004), waist circumference (AUC=0.968, 95% CI=0.947-0.990, p=0.011),
hip circumference (AUC=0.967, 95% CI=0.943-0.991, p=0.012), waist-to-height ratio (AUC=0.968, 9%5 CI=0.946-0.990, p=0.011),
TMI (AUC=0.968, 95% CI=0.947-1.000, p=0.007), BRI (AUC=0.968, 95% CI=0.947-0.990, p=0.011), and AVI (AUC=0.969, 95%
CI=0.948-0.990, p=0.011) demonstrated excellent performance in distinguishing overweight/obesity. Body adiposity index showed
good performance (AUC=0.888, 95% CI=0.842-0.934, p=0.024), ABSI-adolescent (AUC=0.745, 95% CI=0.656-0.798, p=0.036), and CI
showed poor performance (AUC=0.627, 95% CI=0.555-0.714, p=0.041).
Conclusion: In children and adolescents, BAIp, BMI-SDS, waist circumference, hip circumference, waist-to-height ratio, TMI, BRI, and
AVI can be utilized to predict PBF and assess overweight/obesity.

Anahtar Kelimeler

Children, adolescent, anthropometry, body composition, percentage of body fat

Biyoelektrik İmpedans Analiz ile Vücut Yağı Yüzdesi Analizi Yapılan Çocuk ve Adölesanlarda Geleneksel ve Yeni Antropometrik İndekslerin Karşılaştırılması

Öz

Amaç: Bu çalışmanın amacı, çocuk ve adölesanlarda beden kütle indeksi (BKİ), bel çevresi, kalça çevresi, bel/boy oranı, triponderal
kütle indeksi (TKİ), beden adipozite indeksi (BAİ), pediatrik beden adipozite indeksi (BAİp), beden şekil indeksi (ABSI-adölesan),
beden yuvarlaklık indeksi (BRI), abdominal volüm indeksi (AVİ) ve konisite indeksinin (Kİ) fazla kilolu/obeziteyi tahmin etme ve
beden yağı yüzdesini (PBF) öngörme etkinliğinin araştırılmasıdır.
Gereç ve Yöntemler: Kronik hastalığı olmayan 6-18 yaş arasındaki çocuk ve adölesanlar dahil edildi. Vücut kompozisyonunu
değerlendirmek için biyoelektrik impedans analizi (BİA) referans yöntem kullanılarak olgular zayıf/normal (grup 1) ve fazla kilolu/
obez (grup 2) olmak üzere 2 gruba ayrıldı. Verilerin değerlendirilmesinde tanımlayıcı istatistikler ile bağımsız t-testi, Mann-Whitney U
ve İşlem Karakteristiği Eğrisi (ROC) analizi kullanıldı.
Bulgular: Çalışmaya toplamda 466 olgu (%58,6 kız, %41,4 erkek) dahil edildi. Katılımcıların ortanca yaşı 13,2 (10,1-16,0) idi. BİA’ya
göre olguların %10,7’si (n=50) zayıf, %33,7’u (n=157) normal, %10,9’u (n=51) fazla kilolu iken %44,6’ü (n=208) obez idi. Tüm kohortta,
fazla kilolu/obezlerde BKİ-SDS, bel çevresi, kalça çevresi, bel/boy oranı, TKİ, BAİ, BAİp, ABSI-adölesan, BRI, AVİ ve Kİ anlamlı olarak
yüksekti (p<0,05). Biyoelektrik impedans analizi referans alındığında, fazla kilolu/obeziteyi ayırt etmede, BAİp [eğri altında kalan alan
(area under the curve=AUC) =0,980, %95 güven aralığı (GA)=0,959-1,000, p=0,010], BKİ-SDS (AUC=0,968, %95 GA=0,948-1,000,
p=0,004), bel çevresi (AUC=0,968, %95 GA=0,947-0,990, p=0,011), kalça çevresi (AUC=0,967, %95 GA=0,943-0,991, p=0,012), bel/
boy oranı (AUC=0,968, %95 GA=0,946-0,990, p=0,011), TKİ (AUC=0,968, %95 GA=0,947-1,000, p=0,007), BRI (AUC=0,968, %95
GA=0,947-0,990, p=0,011) ve AVİ (AUC=0,969, %95 GA=0,948-0,990, p=0,011) mükemmel performans gösterdi. Beden adiposite
indeksi iyi (AUC=0,888, %95 GA=0,842-0,934, p=0,024), ABSI-adölesan (AUC=0,745, %95 GA=0,656-0,798, p=0,036), Kİ ise zayıf
performans gösterdi (AUC=0,627, %95 GA=0,555-0,714, p=0,041).
Sonuç: Çocuk ve adölesanlarda, PBF’yi tahmin etmek ve fazla kilolu/obeziteyi değerlendirmek için BAİp, BKİ-SDS, bel çevresi, kalça
çevresi, bel/boy oranı, TKİ, BRI ve AVİ kullanılabilir.

Anahtar Kelimeler

Çocuklar, adölesanlar, antropometri, vücut kompozisyonu, vücut yağ yüzdesi

Etik Beyan

Ordu Üniversitesi, Klinik Araştırmalar Etik Kurulu’ndan onay alınmıştır (Karar Numarası: 2023/176).

Destekleyen Kurum

Yazarlar herhangi bir finansal destek alınmadığını beyan etmektedirler.

Teşekkür

Araştırmaya katılmaya gönüllü olan olgulara ve ailelerine teşekkür ederiz.

Kaynakça

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