Journal of the Korean Academy of Child and Adolescent Psychiatry

Korean Academy of Child and Adolescent Psychiatry (대한소아청소년정신의학회)
권호 표지

Sleep Duration and Body Mass Index in Korean Children

한국 아동의 수면시간과 체질량지수

  • Choi, Sung-Min (Department of Psychiatry, College of Medicine, Catholic University of Daegu) ;
  • Seo, Wan-Seok (Department of Neuropsychiatry, Collefe of Medicine, Yeungnam University) ;
  • Sung, Hyung-Mo (Department of Neuropsychiatry, CHA University) ;
  • Koo, Bon-Hoon (Department of Neuropsychiatry, Collefe of Medicine, Yeungnam University) ;
  • Kim, Kyung-Keun (Department of Neuropsychiatry, Collefe of Medicine, Yeungnam University) ;
  • Kim, So-Yeun (Department of Neuropsychiatry, Collefe of Medicine, Yeungnam University) ;
  • Choi, So-Jeong (Department of Neuropsychiatry, Collefe of Medicine, Yeungnam University) ;
  • Lee, Jong-Hun (Department of Psychiatry, College of Medicine, Catholic University of Daegu)
  • 최성민 (대구가톨릭대학교 의과대학 정신과학교실) ;
  • 서완석 (영남대학교 의과대학 신경정신과학교실) ;
  • 성형모 (CHA 의과학대학교 신경정신과학교실) ;
  • 구본훈 (영남대학교 의과대학 신경정신과학교실) ;
  • 김경근 (영남대학교 의과대학 신경정신과학교실) ;
  • 김소연 (영남대학교 의과대학 신경정신과학교실) ;
  • 최소정 (영남대학교 의과대학 신경정신과학교실) ;
  • 이종훈 (대구가톨릭대학교 의과대학 정신과학교실)
  • Received : 2009.05.04
  • Accepted : 2009.07.03
  • Published : 2009.10.30
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Abstract

Objectives : We conducted this study to investigate the relationship between sleep duration and body mass index (BMI), in Korean children. Methods : We performed a cross-sectional analysis of data collected on 3,639 boys and girls (aged 7-12) in Daegu, Korea. The data included each child's age, sex, weight, height, extracurricular activities, bedtime, wake-up time, sleep latency, total sleep duration, parents' occupations, and parents' educational levels. The relationship between sleep duration and each variable was examined via analysis of variance (ANOVA). Results : The analysis showed an association between short sleep duration and high BMI. Boys showed a graded inverse relationship between sleep duration and BMI. However, there was no significant corresponding result for girls. In the total sample, hours of computer use, time when the computer was turned off, time when the television was turned off, mother's bedtime, and hours of extracurricular activity were associated with longer sleep duration. No association was found between sleep duration and hours of watching television, child's wake-up time, or educational level of the parents. Conclusion : The results of this study show an inverse relationship between a child's sleep duration and BMI；thus, children with shorter sleep duration tend to have higher BMIs.

Keywords

References

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