Descriptive epidemiology and health consequences of childhood obesity

John J Reilly1

  • 1Division of Developmental Medicine, Human Nutrition, 1st Floor Tower Block QMH, Yorkhill Hospitals, Dalnair Street, Glasgow, Scotland G3 8SJ, UK. jjr2y@clinmed.gla.ac.uk

Insights

Childhood obesity is a growing public health crisis, best defined by body mass index (BMI) percentile. This definition identifies excessive fatness and associated health risks, necessitating effective monitoring strategies.

Area of Science:

  • Pediatrics
  • Public Health
  • Epidemiology

Background:

  • Childhood obesity is the most prevalent disorder in developed nations, with continuously rising rates.
  • A significant body of evidence supports using body mass index (BMI) percentile against national references for accurate obesity definition.
  • This established definition effectively identifies excessive fatness and associated health risks.

Purpose of the Study:

  • To highlight the current definition of childhood obesity using BMI percentile.
  • To underscore the public health crisis posed by the increasing prevalence and adverse consequences of paediatric obesity.
  • To identify areas for future research in obesity definition and long-term effects.

Main Methods:

  • Review of existing high-quality evidence on childhood obesity definition.
  • Analysis of the utility of BMI percentile for diagnosing excessive fatness.
  • Assessment of current knowledge on health outcomes and research gaps.

Main Results:

  • Body mass index (BMI) percentile is the recommended metric for defining childhood obesity.
  • This definition accurately diagnoses excessive fatness and indicates increased health risks.
  • Paediatric obesity leads to significant ill health in childhood and adulthood.

Conclusions:

  • The current definition of childhood obesity using BMI percentile is adequate for epidemiological surveillance.
  • Further research is needed to refine obesity definitions and understand long-term economic and health consequences.
  • The escalating epidemic of childhood obesity constitutes a major public health crisis requiring effective monitoring and intervention.

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