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June 2009Volume 154, Issue 6, Pages 814–818
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Sleep and Obesity in Preschool Children

Fan Jiang
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Fan Jiang
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Affiliations

  • Department of Child Development and Behavior, Shanghai Children's Medical Center, affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
, MD, PhD
,
Shankuan Zhu
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Shankuan Zhu
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Affiliations

  • Injury Research Center, Medical College of Wisconsin, Milwaukee, WI, and Zhejiang University School of Medicine, Zhejiang, China
, PhD
,
Chonghuai Yan
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Chonghuai Yan
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Affiliations

  • Shanghai Institute for Pediatric Research, Xinhua Hospital affiliated with Shanghai Jiaotong University School of Medicine, Shanghai, China
, MD, PhD
,
Xingming Jin
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Xingming Jin
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Affiliations

  • Department of Child Development and Behavior, Shanghai Children's Medical Center, affiliated with Shanghai Jiao Tong University School of Medicine, Shanghai, China
, MD
,
Hari Bandla
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Hari Bandla
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Affiliations

  • Department of Pediatrics, University of Nebraska Medical Center, Omaha, NE
, MD
,
Xiaoming Shen
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Xiaoming Shen
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Affiliations

  • Shanghai Institute for Pediatric Research, Xinhua Hospital affiliated with Shanghai Jiaotong University School of Medicine, Shanghai, China

Correspondence

  • Reprint requests: Xiaoming Shen, MD, PhD, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Rd, Shanghai, 200092 China
, MD, PhD'Correspondence information about the author MD, PhD Xiaoming Shen
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Xiaoming Shen
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Affiliations

  • Shanghai Institute for Pediatric Research, Xinhua Hospital affiliated with Shanghai Jiaotong University School of Medicine, Shanghai, China

Correspondence

  • Reprint requests: Xiaoming Shen, MD, PhD, Shanghai Institute for Pediatric Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Rd, Shanghai, 200092 China
Sleep and Obesity in Preschool Children
DOI: https://doi.org/10.1016/j.jpeds.2008.12.043

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Objective

To examine the relationship between sleep and obesity in children 3 to 4 years old in Shanghai, China.

Study design

A total of 1311 Chinese children from 10 kindergarten classes in Shanghai, aged 3 to 4 years, who were participating in the kindergarten entrance health examination in 2000, were included in the study. Body weight and height were measured, and a questionnaire was given to the children's parents about sleep and physical and social characteristics of the children and their family. The main outcome measure was obesity, defined as body mass index (kg/m2) ≥95th percentile for the children.

Results

Compared with children reporting ≥11 hours of sleep per night, the odds ratio for childhood obesity was 4.76 (95% CI, 1.28-17.69) for children with <9 hours of sleep, and 3.42 (95% CI, 1.12-10.46) for children with 9.0 to 9.4 hours of sleep, after adjustment for age, sex, and other risk factors. Children with caregivers who slept less, who had mothers with higher education, or who co-slept with caregivers had less nighttime sleep than other children.

Conclusion

Short sleep duration is positively associated with obesity in preschool children, and short nighttime sleep duration is significantly related to bedtime and co-sleeping with caregivers.

Abbreviations:

BMI (Body mass index), OR (Odds ratio)

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Supported in part by the National Natural Science Foundation (30500410), Shanghai Key Laboratory of Children's Environmental Health (04DZ05904, 06DZ22024), the Key Discipline in Pediatrics of Shanghai Municipal Education Commission (T0204), and the Key Project in Medicine of Shanghai Municipal Bureau of Health (05III002). The study sponsors had no involvement in the study design or the collection, analysis, and interpretation of data. The authors declare no potential conflicts of interest, real or perceived.

© 2009 Mosby, Inc. Published by Elsevier Inc. All rights reserved.
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< Previous Article
Next Article >
June 2009Volume 154, Issue 6, Pages 814–818