Short sleep duration in relation to body weight and blood pressure among Czech adults

Zlata Kapounová1, Martin Forejt1, Julie Bienertová Vašků2
1Masaryk University, Faculty of Medicine, Department of Public Health, Brno, Czech Republic 2Masaryk University, Faculty of Medicine, Department of Pathological Physiology, Brno, Czech Republic

Korespondenční autor: Zlata Kapounová (

ISSN 1804-7181 (On-line)

Full verze:
Full version

Submitted:21. 10. 2014
Accepted: 13. 5. 2015
Published online: 26. 6. 2015


Study objectives: The aim of this study was to investigate possible associations between obesity related anthropometric determinants and blood pressure measurements according to the self-recorded number of daily hours of sleep within the adult Czech population. Methods: A total of 478 women and men aged 18.65 years were included between the years 2006.2010. The research methodology consisted of anthropometric measurements and bioelectrical impedance for the classification of body parameters, and the measurement of blood pressure (BP). Data on sleep duration were obtained using 24-hour time diaries in which the total hours of sleep per day for seven consecutive days were recorded. Logistic regression and multivariable logistic regression analysis were applied to calculate crude odds ratios (ORs), adjusted ORs after controlling for potential confounders, and 95% confidence intervals (CIs) of obesity, high normal BP and hypertension for short sleep defined as <6.9 hours per day. Results: No associations were found within the total cohort. Only participants aged 18.39 years, sleeping <6.9 hours per day had a significantly increased risk of abdominal obesity (OR = 2.67; 95% CI: based on waist circumference and OR = 5.92; 95% CI: based on waist-hip ratio) and hypertension (OR = 3.10; 95% CI: for diastolic BP .90 mmHg) after adjustments. Conclusions: Our findings suggest that short sleep duration appears independently associated with central fat distribution and high blood pressure particularly in younger age groups.

Keywords: sleep; obesity; body mass index; waist circumference; waist-hip ratio; adiposity; blood pressure; hypertension


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