Associations between short sleep duration and central obesity in women
2010 (English)In: Sleep, ISSN 0161-8105, E-ISSN 1550-9109, Vol. 33, no 5, 593-598 p.Article in journal (Refereed) Published
Background: Central obesity is closely related to morbidity. Finding potentially modifiable risk factors is important. The aim was to assess associations between sleep duration and central obesity in women. Methods: A population-based, cross-sectional sample of 400 women (range 20-70 years) in Uppsala, Sweden was investigated by full-night polysomnography and measurement of anthropometric variables. Results: Sleep duration was inversely related to both waist circumference and sagittal abdominal diameter. A mean difference of 9 cm in waist circumference (p<0.0001) and 3 cm in sagittal abdominal diameter (p<0.0001) was observed between women sleeping <5 hours and women sleeping ≥8 hours. Sleep duration remained inversely related to waist circumference (adj. β= -1.22 cm/h; p=0.0023) and sagittal abdominal diameter (adj. β= -0.46 cm/h; p=0.001) after adjusting for potential confounders. Duration of slow-wave sleep (SWS, adj. β= -0.58 cm/min; p=0.025) and rapid eye movement (REM) sleep (adj. β= -0.62 cm/min; p=0.002) were both inversely related to waist circumference. Moreover, duration of REM sleep was inversely related to sagittal abdominal diameter (adj. β= -0.021 cm/min; p<0.0001). These associations were stronger in young women (age <50 years). Conclusion: An inverse relationship between short sleep duration and central obesity was found in women after adjusting for confounders. Loss of SWS and REM sleep may be contributing factors to the development of central obesity. By increasing the duration and quality of sleep, central obesity in women may be reduced.
Place, publisher, year, edition, pages
2010. Vol. 33, no 5, 593-598 p.
sleep, obesity, women, population-based, sleep duration, sleep stages, central obesity, women, population-based
Respiratory Medicine and Allergy
Research subject Lung Medicine
IdentifiersURN: urn:nbn:se:uu:diva-99077ISI: 000277232200006OAI: oai:DiVA.org:uu-99077DiVA: diva2:202076