alexa Sleep duration and obesity in children: is the association dependent on age and choice of the outcome parameter?
Psychiatry

Psychiatry

Journal of Child and Adolescent Behavior

Author(s): Bayer O, Rosario AS, Wabitsch M, von Kries R

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Abstract STUDY OBJECTIVES: To assess the association between sleep duration in children and different markers of body fat by age and weight status. DESIGN: Nation-wide health survey. Measurement of BMI and body fat percentage (KFA) calculated from weight, height, skin fold thickness, age, and sex. Sleep duration and potential confounding variables were assessed in a parent questionnaire. SETTING: N/A. PARTICIPANTS: 7767 German resident children from 3 to 10 years of age. INTERVENTIONS: N/A. MEASUREMENTS AND RESULTS: Prolongation of sleep duration from the lowest to the highest percentile accounted for a similar mean decrease founding variables and did not show a systematic age dependency. The greatest effects of sleep duration were seen for the upper tails of the BMI and KFA distributions, which were about four as high as the lower tails. CONCLUSIONS: The association between sleep duration and weight status is of similar size through ages 3 to 10 years. The sleep-associated changes in BMI are likely to be a consequence of higher body fat and primarily affect children whose BMI or KFA is already elevated. These findings favor hormonal pathways nurturing adipose tissue playing a key role in the underlying physiological mechanisms.
This article was published in Sleep and referenced in Journal of Child and Adolescent Behavior

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