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Updated: Feb 18, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Obesity in Children: Definition, Etiology and Approach
Bhawana Aggarwal1, Vandana Jain2
1Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India.
Insights
Childhood obesity is a global health concern driven by lifestyle changes. This paper reviews methods for identifying childhood obesity and its causes, including rare genetic and endocrine factors.
Area of Science:
- Pediatrics
- Public Health
- Endocrinology
Background:
- Childhood obesity is a significant global public health challenge.
- Key drivers include urbanization, sedentary lifestyles, and dietary shifts.
- While most cases are multifactorial, a subset stems from endocrine, syndromic, or monogenic origins.
Purpose of the Study:
- To summarize methods, definitions, and cut-offs for identifying childhood obesity.
- To review techniques for body fat estimation and obesity classification.
- To present an approach for etiological assessment of pediatric obesity.
Main Methods:
- Review of established methods for body fat estimation in children.
- Analysis of reference curves for body mass index and waist circumference.
- Discussion of etiological factors, including environmental and endocrine influences.
Main Results:
- Standardized methods and cut-offs are crucial for accurate obesity identification.
- Body mass index and waist circumference curves provide valuable reference points.
- Clinical indicators like short stature and dysmorphism suggest specific obesity subtypes.
Conclusions:
- Accurate identification of childhood obesity requires standardized methods and clear definitions.
- Understanding the diverse etiologies, from lifestyle to genetic factors, is essential for effective management.
- Recognizing clinical pointers aids in diagnosing syndromic, endocrine, or monogenic obesity.
Abstract:
Childhood obesity is an important public health issue worldwide. Urbanization, sedentary lifestyle and change in food habits are the chief reasons behind this pandemic. In a small proportion of children, obesity is the result of endocrine, syndromic or monogenic causes. The present paper summarizes the methods, definitions and cut-offs for identification of obesity in children. We have briefly reviewed the various techniques used for estimation of body fat in children and the cut-offs for defining obesity based on body fat percentage, and the reference curves based on body mass index and waist circumference. The etiology of obesity in children, including individual behaviors, macro- and micro-environmental influences, and endocrine causes have been discussed, and an approach to etiological assessment of obese children has been presented. Special emphasis has been laid on clinical pointers that suggest the presence of syndromic, endocrine or monogenic forms of obesity, such as, short stature, dysmorphism, neurocognitive impairment and early age at onset.
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