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[Characteristics of fat mass distribution in children aged 3-17 years in China]

P P Xu1, X H Pang1, W Cao1

  • 1National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention/Key Laboratory of Public Nutrition and Health, National Health Commission of the People's Republic of China/Key Laboratory of Human Milk Science, Chinese Center for Disease Control and Prevention, Beijing100050, China.

Zhonghua Liu Xing Bing Xue Za Zhi = Zhonghua Liuxingbingxue Zazhi
|December 4, 2024
PubMed

Insights

This study analyzed fat mass (FM), fat mass percentage (FMP), and fat mass index (FMI) in Chinese children aged 3-17. Findings reveal distinct regional and sex-based variations in body composition across different age groups.

Area of Science:

  • Pediatric Nutrition and Body Composition Analysis
  • Public Health and Epidemiology
  • Anthropometry and Bioimpedance Analysis

Context:

  • Understanding childhood body composition is crucial for assessing nutritional status and identifying health risks.
  • Significant regional and demographic variations in body composition metrics exist within China's diverse population.
  • Previous research has not comprehensively detailed the age and sex-specific distribution of fat mass, fat mass percentage, and fat mass index in Chinese children.

Purpose:

  • To characterize the distribution of fat mass (FM), fat mass percentage (FMP), and fat mass index (FMI) in Chinese children aged 3–17 years.
  • To investigate regional, sex-specific, and age-specific patterns of these body composition parameters.
  • To provide normative data for pediatric body composition in China.

Summary:

  • Data from 70,853 children aged 3-17 across seven Chinese regions were analyzed using bioelectrical impedance.
  • Fat mass (FM), fat mass percentage (FMP), and fat mass index (FMI) showed varied trends with age and sex, with higher values in girls after age 12.
  • Regional differences were observed, with higher FM, FMP, and FMI in children aged 6-14 from northeastern and northern China.

Impact:

  • Establishes reference ranges for pediatric body composition in China, aiding in the identification of overweight, obesity, and malnutrition.
  • Highlights the need for region-specific and sex-specific growth charts and health interventions.
  • Informs public health strategies related to childhood nutrition and the prevention of non-communicable diseases.

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