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Associations of sitting time and occupation with metabolic syndrome in South Korean adults: a cross-sectional study

 Jin Young Nam  ;  Juyoung Kim  ;  Kyung Hee Cho  ;  Young Choi  ;  Jaewoo Choi  ;  Jaeyong Shin  ;  Eun-Cheol Park 
 BMC Public Health, Vol.16(943) : 1-10, 2016 
Journal Title
 BMC Public Health 
Issue Date
Adult ; Aged ; Cross-Sectional Studies ; Female ; Humans ; Logistic Models ; Male ; Metabolic Syndrome/epidemiology ; Metabolic Syndrome/etiology* ; Middle Aged ; Nutrition Surveys ; Occupational Diseases/epidemiology ; Occupational Diseases/etiology* ; Occupations/statistics & numerical data* ; Odds Ratio ; Posture* ; Republic of Korea/epidemiology ; Risk Factors ; Sedentary Lifestyle ; Self Report ; Time Factors* ; Workplace/statistics & numerical data ; Young Adult
Metabolic syndrome ; Occupation ; Sedentary behavior ; Sitting-time
Background ; Previous evidence suggests that there is a correlation between prolonged sitting time and cardio-metabolic disease, such as metabolic syndrome (MS). Cardiovascular disease is the second-leading cause of mortality in South Korea, a country with the longest working hours among all member states of the Organization for Economic Co-operation and Development. However, no previous study has investigated the relationships of overall sitting-time and occupation with MS in South Korea. Accordingly, the present study examined these relationships in a South Korean population. Methods : Data from the sixth Korean National Health and Nutrition Examination Survey (KNHANES), a nationally representative survey with a cross-sectional design, were used in the present study. MS diagnoses were evaluated using the International Diabetes Foundation (IDF) criteria. Participants self-reported their overall sitting times, and occupations were classified using the Korean version of the Standard Classification of Occupations (KSCO). A multiple logistic regression analysis was conducted to evaluate the associations of sitting time and occupation with MS. Results : The risk of MS was 1.21-fold higher among participants who sat for >7 h/day than among those who sat for ≤7 h/day (odds ratio [OR]: 1.21, 95 % confidence interval [CI]: 1.00?1.46). Regarding occupation, office workers had a two-fold higher risk of MS than did agriculture, forestry, and fishery (AFF) workers (OR: 2.01, 95 % CI: 1.26?3.22). In a combined analysis of sitting time and occupation, male participants who sat for >7 h/day and reported an occupation that involves office work (OW) or machine fitting (MF) were significantly more likely to have MS when compared to those who sat for ≤7 h/day and were employed as AFF workers (>7 h/day?×?OW, OR: 2.41, 95 % CI: 1.05?5.51; >7 h/day?×?MF, OR: 2.92, 95 % CI: 1.43?5.93). Conclusions : Excessive sitting time and a sedentary occupation correlated positively with MS in South Korean adults. Accordingly, a reduction in the overall sitting time or inclusion of energy-expending activities in the workplace might improve the rate of MS.
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4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
남진영(Nam, Jin Young)
박은철(Park, Eun-Cheol) ORCID logo https://orcid.org/0000-0002-2306-5398
신재용(Shin, Jae Yong)
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