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KMID : 1100920200410060374
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Korean Journal of Family Medicine
2020 Volume.41 No. 6 p.374 ~ p.380
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Association of Sedentary Time and Physical Activity with the 10-Year Risk of Cardiovascular Disease: Korea National Health and Nutrition Examination Survey 2014?2017
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Lee Ye-Na
Son Joung-Sik
Eum Yoon-Hee
Kang Ok-Lim
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Abstract
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Background: Sedentary behavior is associated with increased cardiovascular disease (CVD) risk. We investigated this association of sedentary time and physical activity with increased 10-year CVD risk in Korean adults.
Methods: This cross-sectional study used data from the Korea National Health and Nutrition Examination Survey (2014?2017). In total, 14,551 participants aged 30?74 years (6,323 men, 8,228 women) were analyzed. The usual length of sedentary time per day was categorized into three groups (<6, 6?<9, or ≥9 h/d), and physical activity (metabolic equivalents [METs]?min/wk) was categorized into two groups (low, <600 METs?min/wk; moderate/high, ≥600 METs?min/wk). Logistic regression analysis was performed to assess the association between sedentary time and increased CVD risk (predicted 10-year risk ≥10%). Adjusted variables were age, sex, body mass index, marital status, employment, household income, alcohol use, family history of CVD, and comorbidity (hypertension, diabetes, and dyslipidemia).
Results: The average sedentary time for the 14,551 participants was 7.49 h/d, with an average 10-year CVD risk of 9.58%. There was no significant association between sedentary time and increased 10-year CVD risk in the moderate/ high physical activity group. In the low physical activity group, sedentary time ≥9 h/d had a significant association with increased CVD risk (odds ratio [OR], 1.29; 95% confidence interval [CI], 1.04?1.62). However, when the sedentary time was <6 h/d, no significant associations were found (OR, 1.17; 95% CI, 0.92?1.49).
Conclusion: In the low physical activity group, reduction of sedentary time might be important for preventing increased CVD risk.
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KEYWORD
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Sedentary Behavior, Exercise, Cardiovascular Disease, Cardiovascular Diseases
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