期刊
AUSTRALIAN AND NEW ZEALAND JOURNAL OF PUBLIC HEALTH
卷 34, 期 2, 页码 165-171出版社
WILEY
DOI: 10.1111/j.1753-6405.2010.00502.x
关键词
sleep; adolescent; overweight; obese; children
资金
- Australian Commonwealth Department of Health and Ageing
- Department of Agriculture, Fisheries and Forestry
- Australian Food and Grocery Council
Objective: This study aimed to explore sleep duration in young Australians on different types of days across weight classes Methods: Use of time and anthropometric data were collected on 8,866 nights from 3,884 9-18 year old Australians The association between sleep duration and weight status was examined using factorial ANOVA for four day types S-S (to bed and waking on school days), S-NS (to bed on school day and waking on non-school day), NS-NS (to bed and waking on non-school days), NS-S (to bed on non-school day and waking on school day) Results: Sleep duration varied with weight status when all day types were considered together (p=0 0012) Obese adolescents slept less than normal and underweight adolescents However, the relationship varied for different day types, with the strongest relationship for NS-S days (on which obese children slept 65 min less than very underweight children, p<0 0001) Conclusions: The association between weight status and sleep duration showed consistent gradients across weight categories, but only for certain day types Implications: These patterns cast light on the direction of causation in the obesity-sleep duration relationship Findings suggest that short sleep duration contributes to obesity, or that a third unidentified factor has an impact on both
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