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Comparison of various anthropometric indices in predicting abdominal obesity in Chinese children: a cross-sectional

Gengdong Chen1, Huanchang Yan2, Yuting Hao2

  • 1Foshan Institute of Fetal Medicine, Department of Obstetrics, Southern Medical University Affiliated Maternal & Child Health Hospital of Foshan, Foshan, 528000, Guangdong, China.

BMC Pediatrics
|April 26, 2019
PubMed

Insights

This study establishes reference values for abdominal fat percentage (AFP) in Chinese children aged 6-9 years. Body mass index (BMI) and waist-to-height ratio (WHtR) are identified as key indicators for predicting childhood abdominal obesity.

Area of Science:

  • Pediatric Endocrinology
  • Body Composition Analysis
  • Public Health Nutrition

Background:

  • Limited data exists on reference values for abdominal fat percentage (AFP) in Chinese children.
  • Previous studies lacked optimal anthropometric indicators for identifying abdominal obesity in this demographic using dual-energy X-ray absorptiometry (DXA).

Purpose of the Study:

  • To establish reference values for AFP in Chinese children aged 6-9 years.
  • To identify optimal anthropometric indicators for predicting abdominal obesity in this population.

Main Methods:

  • A cross-sectional study involving 452 Chinese children aged 6-9 years.
  • Abdominal fat and lean mass measured via DXA scan; AFP calculated.
  • Anthropometric indicators including BMI, chest circumference (CC), waist circumference (WC), hip circumference (HC), waist-to-hip ratio (WHR), and waist-to-height ratio (WHtR) were measured and calculated.

Main Results:

  • Abdominal obesity defined as AFP ≥ 85th percentile; specific cutoff values provided for boys and girls aged 6-9 years.
  • All measured anthropometric indicators were positively associated with AFP (P < 0.01).
  • In girls, BMI was the optimal predictor (AUC 0.886, excluding WHtR). In boys, WHtR (AUC 0.922) was the best predictor, followed by BMI (AUC 0.913).

Conclusions:

  • Provides crucial reference values for AFP in Chinese children (6-9 years) using DXA.
  • Recommends BMI as the optimal indicator for predicting abdominal obesity in Chinese girls.
  • Identifies WHtR as the optimal indicator for predicting abdominal obesity in Chinese boys.
Abstract

Keywords:
Abdominal obesityAnthropometric indicatorsChildrenChineseFat percentage

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