The associations between nighttime sleep duration, bedtime and preschool children's obesity
10.3760/cma.j.issn.0253-9624.2018.11.010
- VernacularTitle: 夜间睡眠时间和就寝时间与学龄前儿童肥胖的关联研究
- Author:
Liu JIANG
1
;
Shuangqin YAN
;
Menglong GENG
;
Chunli GU
;
Kun HUANG
;
Hui CAO
;
Xiaoyan WU
;
Fangbiao TAO
Author Information
1. Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University/Anhui Provincial Laboratory of Population Health and Eugenics, Hefei 230032, China
- Publication Type:Journal Article
- Keywords:
Child, preschool;
Obesity;
Sleep;
Cross-sectional studies
- From:
Chinese Journal of Preventive Medicine
2018;52(11):1146-1151
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To examine the relationship of nighttime sleep duration and bedtime with preschool children's obesity, and to explore possible early life risk factors for childhood obesity.
Methods:A total of 14 946 valid children from 16 439 pre-school children aged 3-6 years in 91 kindergartens in Ma'anshan city participated in the study. The body mass index cut-offs for overweight and obesity in Chinese children and adolescents aged 2-18 years was used as the criterion for judging overweight and obesity, and pathological and secondary causes of obesity were excluded. The associations of nighttime sleep duration and bedtime with preschool children's obesity was analyzed by using non-conditional multivariate binary logistic regression model.
Results:Among the preschool children, 22.4% (n=3 345) had shorter sleep duration. 9.5% (n=1 415) had bedtimes after 22:00 on weekdays and 21.8% (n=3 260) had bedtimes after 22:00 on weekends. The prevalence of overweight and obesity were 16.5% (n=2 466) and 10.5% (n=1 562), respectively. After the adjustent of age, gender, whether or not only child, residence in the last six months, parents' body mass index parents' educational level, diet preference, outdoor activities, TV viewing duration, sleep duration, bedtime on weekdays and weekends, only the shorter sleep duration (OR=1.25, 95%CI: 1.03-1.51) was still positively associated with the prevalence of obesity in preschool children.
Conclusion:Shorter sleep duration was positively associated with the prevalence of obesity among preschool children.
