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Association of Sleep Duration and Overweight/Obesity among Children in China

Jing Fan1, Caicui Ding1, Weiyan Gong1

  • 1Department of Nutrition and Health Education, National Institute for Nutrition and Health, Chinese Center for Disease Control and prevention, Beijing 100050, China.

International Journal of Environmental Research and Public Health
|March 21, 2020
PubMed

Insights

Shorter sleep duration in Chinese children (6-17 years) is linked to higher risks of overweight and obesity. Increasing sleep duration may help reduce these rates.

Area of Science:

  • Pediatric Nutrition
  • Public Health
  • Sleep Medicine

Background:

  • Childhood overweight and obesity are significant public health concerns in China.
  • Understanding the role of lifestyle factors, such as sleep duration, is crucial for prevention strategies.

Purpose of the Study:

  • To examine the association between sleep duration and the prevalence of overweight and obesity in Chinese children aged 6 to 17 years.
  • To identify specific sleep duration thresholds associated with increased risk.

Main Methods:

  • Analysis of data from 35,414 children in the China National Nutrition and Health Surveillance (CNHHS) from 2010-2012.
  • Utilized multinomial logistic regression and restricted cubic splines (RCS) to analyze sleep duration (categorized and continuous) against Body Mass Index (BMI) categories (normal, overweight, obesity).
  • Adjusted for potential confounders including age, gender, residence, income, sedentary behavior, and exercise.

Main Results:

  • Very short and short sleep durations were significant risk factors for obesity (ORs 3.01 and 1.24, respectively) and overweight (OR 1.17 for short sleep) after adjustments.
  • No significant associations were found between very short sleep and overweight, or between long sleep and overweight/obesity.
  • RCS curves showed an inverted J-shaped relationship between sleep duration and overweight/obesity.

Conclusions:

  • Shorter sleep duration is positively associated with increased risk of overweight and obesity in Chinese children.
  • Recommendations for increasing sleep duration may contribute to reducing childhood overweight and obesity rates in China.

Keywords:
Chinachildrenobesityoverweightsleep duration

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