Sleep and Obesity in Children and Adolescents
Section snippets
Methods
A systematic search for publications was performed using the PubMed database that included published studies through July 2010. Combinations of key words specific to sleep (eg, sleep and sleeping), weight status (eg, BMI, overweight, obesity, adiposity, weight, fatness, food diet, and energy expenditure), and childhood and adolescence (eg, child, children, adolescent, adolescence) were used. In addition, reference lists of relevant articles and previously conducted relevant review
Sleep Duration and Obesity Risk
Table 1 presents findings from studies that assessed the association between sleep duration and obesity risk in children and adolescents.29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58 It represents 30 studies from 16 countries. For ease of comparison, studies presented in Table 1 are those in which main findings are presented as odds ratios. Two groups published subsequent studies using the same data set, but controlling
Discussion
Our understanding of the role of sleep duration in the current pediatric obesity epidemic is rapidly unfolding. Pediatric studies identified and included in the present review suggest that children who sleep less are at increased risk for being or becoming overweight/obese. This significant relationship was found in both cross-sectional and prospective studies, and persisted in most studies even after controlling for potential confounders, such as parental BMI, birth weight, and television
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This work was supported in part by grants 1-09-JF-22 from the American Diabetes Association, U01 CA150387 from the National Institutes of Health, and T32 HL076134 from the National Institutes of Health.
The authors have nothing to disclose.