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Determinants and impact of sleep duration in children and adolescents: data of the Kiel Obesity Prevention Study.
Eur J Clin Nutr. 2009 Jun; 63(6):739-46.EJ

Abstract

BACKGROUND/OBJECTIVES

This study investigates determinants of sleep duration and its impact on nutritional status, resting energy expenditure (REE), cardiometabolic risk factors and hormones in children/adolescents.

SUBJECTS/METHODS

In 207 girls and 207 boys (13.0+/-3.4 (6.1-19.9) years) body mass index standard deviation score (BMI SDS), waist circumference (WC) z-score, body composition (air-displacement plethysmography), REE (ventilated hood system; n=312) and cardiometabolic risk factors/hormones (n=250) were assessed. Greater than 90th percentile of BMI/WC references was defined as overweight/overwaist. Sleep duration, media consumption (TV watching/computer use), physical activity, dietary habits, parental BMI, socio-economic status and early infancy were assessed by questionnaire. Short sleep was defined as <10 h per day for children <10 years and otherwise <9 h per day.

RESULTS

Total 15.9% participants were overweight, mean sleep duration was 8.9+/-1.3 h per day. Age explained most variance in sleep (girls: 57.0%; boys: 41.2%) besides a high nutrition quality score (girls: 0.9%) and a low media consumption (boys: 1.3%). Sleep was inversely associated with BMI SDS/WC z-score (girls: r=-0.17/-0.19, P<0.05; boys: r=-0.21/-0.20, P<0.01), which was strengthened after adjusting for confounders. Short vs long sleep was associated with 5.5-/2.3-fold higher risks for obesity/overwaist (girls). After adjusting for age, REE (adjusted for fat-free mass) was positively associated with sleep in boys (r=0.16, P<0.05). Independently of age and WC z-score, short sleep was associated with lower adiponectin levels in boys (11.7 vs 14.4 microg/ml, P<0.05); leptin levels were inversely related to sleep in girls (r=-0.23, P<0.05). Homoeostasis model assessment-insulin resistance (r=-0.20, P<0.05) and insulin levels (r=-0.20, P<0.05) were associated with sleep (girls), which depended on WC z-score.

CONCLUSIONS

Age mostly determined sleep. Short sleep was related to a higher BMI SDS/WC z-score (girls/boys), a lower REE (boys), higher leptin (girls) and lower adiponectin levels (boys).

Authors+Show Affiliations

Institut für Humanernährung und Lebensmittelkunde, Christian-Albrechts Universität Kiel, Kiel, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18665183

Citation

Hitze, B, et al. "Determinants and Impact of Sleep Duration in Children and Adolescents: Data of the Kiel Obesity Prevention Study." European Journal of Clinical Nutrition, vol. 63, no. 6, 2009, pp. 739-46.
Hitze B, Bosy-Westphal A, Bielfeldt F, et al. Determinants and impact of sleep duration in children and adolescents: data of the Kiel Obesity Prevention Study. Eur J Clin Nutr. 2009;63(6):739-46.
Hitze, B., Bosy-Westphal, A., Bielfeldt, F., Settler, U., Plachta-Danielzik, S., Pfeuffer, M., Schrezenmeir, J., Mönig, H., & Müller, M. J. (2009). Determinants and impact of sleep duration in children and adolescents: data of the Kiel Obesity Prevention Study. European Journal of Clinical Nutrition, 63(6), 739-46. https://doi.org/10.1038/ejcn.2008.41
Hitze B, et al. Determinants and Impact of Sleep Duration in Children and Adolescents: Data of the Kiel Obesity Prevention Study. Eur J Clin Nutr. 2009;63(6):739-46. PubMed PMID: 18665183.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determinants and impact of sleep duration in children and adolescents: data of the Kiel Obesity Prevention Study. AU - Hitze,B, AU - Bosy-Westphal,A, AU - Bielfeldt,F, AU - Settler,U, AU - Plachta-Danielzik,S, AU - Pfeuffer,M, AU - Schrezenmeir,J, AU - Mönig,H, AU - Müller,M J, Y1 - 2008/07/30/ PY - 2008/7/31/pubmed PY - 2009/9/2/medline PY - 2008/7/31/entrez SP - 739 EP - 46 JF - European journal of clinical nutrition JO - Eur J Clin Nutr VL - 63 IS - 6 N2 - BACKGROUND/OBJECTIVES: This study investigates determinants of sleep duration and its impact on nutritional status, resting energy expenditure (REE), cardiometabolic risk factors and hormones in children/adolescents. SUBJECTS/METHODS: In 207 girls and 207 boys (13.0+/-3.4 (6.1-19.9) years) body mass index standard deviation score (BMI SDS), waist circumference (WC) z-score, body composition (air-displacement plethysmography), REE (ventilated hood system; n=312) and cardiometabolic risk factors/hormones (n=250) were assessed. Greater than 90th percentile of BMI/WC references was defined as overweight/overwaist. Sleep duration, media consumption (TV watching/computer use), physical activity, dietary habits, parental BMI, socio-economic status and early infancy were assessed by questionnaire. Short sleep was defined as <10 h per day for children <10 years and otherwise <9 h per day. RESULTS: Total 15.9% participants were overweight, mean sleep duration was 8.9+/-1.3 h per day. Age explained most variance in sleep (girls: 57.0%; boys: 41.2%) besides a high nutrition quality score (girls: 0.9%) and a low media consumption (boys: 1.3%). Sleep was inversely associated with BMI SDS/WC z-score (girls: r=-0.17/-0.19, P<0.05; boys: r=-0.21/-0.20, P<0.01), which was strengthened after adjusting for confounders. Short vs long sleep was associated with 5.5-/2.3-fold higher risks for obesity/overwaist (girls). After adjusting for age, REE (adjusted for fat-free mass) was positively associated with sleep in boys (r=0.16, P<0.05). Independently of age and WC z-score, short sleep was associated with lower adiponectin levels in boys (11.7 vs 14.4 microg/ml, P<0.05); leptin levels were inversely related to sleep in girls (r=-0.23, P<0.05). Homoeostasis model assessment-insulin resistance (r=-0.20, P<0.05) and insulin levels (r=-0.20, P<0.05) were associated with sleep (girls), which depended on WC z-score. CONCLUSIONS: Age mostly determined sleep. Short sleep was related to a higher BMI SDS/WC z-score (girls/boys), a lower REE (boys), higher leptin (girls) and lower adiponectin levels (boys). SN - 1476-5640 UR - https://www.unboundmedicine.com/medline/citation/18665183/Determinants_and_impact_of_sleep_duration_in_children_and_adolescents:_data_of_the_Kiel_Obesity_Prevention_Study_ L2 - http://dx.doi.org/10.1038/ejcn.2008.41 DB - PRIME DP - Unbound Medicine ER -