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Short sleep duration and childhood obesity: cross-sectional analysis in Peru and patterns in four developing

Rodrigo M Carrillo-Larco1, Antonio Bernabé-Ortiz1, J Jaime Miranda2

  • 1CRONICAS Center of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru.

Plos One
|November 14, 2014
PubMed

Insights

Short sleep duration is not associated with childhood obesity in Peru. While initial findings suggested a link, further analysis controlling for individual and family factors showed no significant relationship, particularly for obesity.

Area of Science:

  • Global Health
  • Pediatric Nutrition
  • Sleep Science

Background:

  • Nutritional status and sleep duration patterns in children from Ethiopia, India, Peru, and Vietnam were examined.
  • The study assessed the association between short sleep duration and overweight/obesity, specifically in Peruvian children.

Purpose of the Study:

  • To describe nutritional status and sleep duration in children across four developing countries.
  • To investigate the link between insufficient sleep and overweight/obesity in Peruvian children, considering gender differences.

Main Methods:

  • Analysis of the Young Lives Study, younger cohort, third round, including over 1,900 children in Peru.
  • Sleep duration (<10 hours vs. 10-11 hours) and Body Mass Index (BMI) for overweight/obesity were assessed.
  • Multivariable hierarchical models were used to analyze associations, controlling for individual and family variables.

Main Results:

  • Overweight/obesity prevalence in Peru was 15.8%/5.4%.
  • Initially, obesity was 64% more prevalent with short sleep duration, but this lost significance after adjustments.
  • Gender modified the association with overweight, but not obesity, with boys showing a higher prevalence ratio than girls.

Conclusions:

  • Childhood overweight and obesity present varied profiles in developing countries.
  • In Peruvian children from resource-limited settings, short sleep duration was not significantly associated with obesity after controlling for confounding factors.
  • Family-related variables strongly diminished the crude association between short sleep and obesity.
Abstract

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