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Association between sitting time and non-alcoholic fatty live disease in South Korean population: a cross-sectional
Jae Hong Joo1,2, Hwi Jun Kim1,2,3, Eun-Cheol Park2,4
1Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea.
Background:
To examine the association between sitting time and non-alcoholic fatty liver disease among South Koreans aged ≥20 years.
Methods:
Data from the 2016-2018 Korea National Health and Nutrition Examination Survey were used for the analysis. Non-alcoholic fatty liver disease was diagnosed according to a hepatic steatosis index of > 36. Sitting time was categorized into as Q1, Q2, Q3, and Q4 using the age-adjusted quartile with Q4 being the longest sitting hour. Multiple logistic regression analysis was used to examine the association between sitting time and non-alcoholic fatty liver disease in South Korean population.
Results:
A total of 13,518 participants were enrolled. The odds for having NAFLD in Q1, Q2, Q3, and Q4 (sitting hours) were 1.07 (CI: 0.88-1.31), 1.16 (CI: 1.96-1.41), and 1.34 (CI: 1.11-1.61), respectively. The odds ratio increased in magnitude with longer hours of sitting time (test for trend: P-value = 0.0002).
Conclusion:
Advising physical exercises and discouraging sedentary activities may help to alleviate NAFLD among the South Korean population.
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