The association between sleep duration and general and abdominal obesity in Koreans: data from the Korean National Health and Nutrition Examination Survey, 2001 and 2005.
This study aimed to investigate the association between self-reported sleep duration and general and abdominal obesity in Korean adults. A total of 8,717 adults aged 20-65 years from the Korean National Health and Nutrition Examination Survey (KNHANES) 2001 and 2005 were included. General obesity was defined as BMI >or=25 kg/m(2) and abdominal obesity as waist circumference >or=90 cm in men and >or=85 cm in women. To control for sociodemographic and lifestyle factors and comorbidities, multivariable logistic regression was used to calculate the adjusted odds ratios (ORs) and 95% confidence intervals (CIs) of general and abdominal obesity across the following sleep duration categories: <or=5, 6, 7, 8, and >or=9 h/day. Mean sleep duration (+/-s.d.) was 6.9 +/- 1.3 h. Those sleeping <or=5 h/day had the highest BMI and waist circumference compared with those sleeping 7, 8, or >or=9 h/day (P < 0.05 for all comparisons). After controlling for sociodemographic and lifestyle factors, the adjusted ORs (95% CIs) associated with sleeping <or=5 h/day (vs. 7 h/day) were 1.25 (1.06-1.48) for general obesity and 1.24 (1.03-1.48) for abdominal obesity. Further adjustment for hypertension and diabetes mellitus did not significantly affect the associations. These data suggest that short sleep duration is significantly associated with a modest increase in general and abdominal obesity in Korean adults.
Park
Se Eun
SE
Division of Endocrinology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
Kim
Hee Man
HM
Kim
Dae Hyun
DH
Kim
Jongoh
J
Cha
Bong Soo
BS
Kim
Dae Jung
DJ
D050153:Abdominal Fat / Q000503:physiopathology; D000328:Adult; D000368:Aged; D015992:Body Mass Index; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D007723:Korea; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000453:epidemiology* / Q000208:ethnology* / Q000503:physiopathology; D016017:Odds Ratio; D015995:Prevalence; D012307:Risk Factors; D012892:Sleep Deprivation / Q000150:complications* / Q000208:ethnology* / Q000503:physiopathology; D055105:Waist Circumference / Q000502:physiology