OBJECTIVE: To assess characteristics of short sleepers and long sleepers and to assess association between sleep duration and central obesity in a population-based sample of women. METHOD: Non-pregnant women ≥20 years that were randomly selected from the population-registry of Uppsala, Sweden, answered a questionnaire (n=6461) including questions on sleeping habits and somatic disorders. RESULTS: There was a U-shaped association between sleep duration and waist circumference. Short sleeping women (<5 h) had a waist circumference of 89.2±14.9 cm (mean±SD) decreasing to 82.9±11.9 cm for women sleeping 7-<8 h and increasing to 89.0±16.7 cm for women sleeping ≥10 h. Both short sleepers and long sleepers were more often physically inactive, smokers, ill or taking medication, and psychologically distressed than normal sleepers (6-<9 h). In women <50 years both short and long sleep duration were risk factors for central obesity. Short sleep duration remained a risk factor for central obesity, whereas the association with long sleep duration did not reach statistical significance after adjustments. CONCLUSIONS: Short sleepers and long sleepers showed differences in characteristics compared to normal sleepers. Furthermore, we showed an independent association between short sleep duration and central obesity, which was strongest in younger women. It is important to identify short sleepers, especially in younger women.
OBJECTIVE: To assess characteristics of short sleepers and long sleepers and to assess association between sleep duration and central obesity in a population-based sample of women. METHOD: Non-pregnant women ≥20 years that were randomly selected from the population-registry of Uppsala, Sweden, answered a questionnaire (n=6461) including questions on sleeping habits and somatic disorders. RESULTS: There was a U-shaped association between sleep duration and waist circumference. Short sleepingwomen (<5 h) had a waist circumference of 89.2±14.9 cm (mean±SD) decreasing to 82.9±11.9 cm for women sleeping 7-<8 h and increasing to 89.0±16.7 cm for women sleeping ≥10 h. Both short sleepers and long sleepers were more often physically inactive, smokers, ill or taking medication, and psychologically distressed than normal sleepers (6-<9 h). In women <50 years both short and long sleep duration were risk factors for central obesity. Short sleep duration remained a risk factor for central obesity, whereas the association with long sleep duration did not reach statistical significance after adjustments. CONCLUSIONS:Short sleepers and long sleepers showed differences in characteristics compared to normal sleepers. Furthermore, we showed an independent association between short sleep duration and central obesity, which was strongest in younger women. It is important to identify short sleepers, especially in younger women.
Authors: Nathaniel F Watson; M Safwan Badr; Gregory Belenky; Donald L Bliwise; Orfeu M Buxton; Daniel Buysse; David F Dinges; James Gangwisch; Michael A Grandner; Clete Kushida; Raman K Malhotra; Jennifer L Martin; Sanjay R Patel; Stuart F Quan; Esra Tasali Journal: J Clin Sleep Med Date: 2015-08-15 Impact factor: 4.062
Authors: Devon L Golem; Jennifer T Martin-Biggers; Mallory M Koenings; Katherine Finn Davis; Carol Byrd-Bredbenner Journal: Adv Nutr Date: 2014-11-14 Impact factor: 8.701
Authors: Nathaniel F Watson; M Safwan Badr; Gregory Belenky; Donald L Bliwise; Orfeu M Buxton; Daniel Buysse; David F Dinges; James Gangwisch; Michael A Grandner; Clete Kushida; Raman K Malhotra; Jennifer L Martin; Sanjay R Patel; Stuart F Quan; Esra Tasali Journal: Sleep Date: 2015-08-01 Impact factor: 5.849
Authors: Daria M McMahon; James B Burch; Michael D Wirth; Shawn D Youngstedt; James W Hardin; Thomas G Hurley; Steven N Blair; Gregory A Hand; Robin P Shook; Clemens Drenowatz; Stephanie Burgess; James R Hebert Journal: Chronobiol Int Date: 2017-12-12 Impact factor: 2.877