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학술저널
저자정보
이승원 (연세대학교 의과대학) Jee-Seon Shim (Yonsei University College of Medicine) Bo Mi Song (Department of Preventive Medicine Yonsei University College of Medicine) Ho Jae Lee (Cardiovascular and Metabolic Diseases Etiology Research Center Yonsei University College of Medici) Hye Yoon Bae (Yonsei University College of Medicine) Ji Hye Park M.D. (Yonsei University College of Medicine) Hye Rin Choi (Yonsei University of Graduate School) 양재원 (Yonsei University Graduate School) 허지은 (연세대학교) So Mi Jemma Cho (Yonsei University of Graduate School) Ga Bin Lee (Yonsei University of Graduate School) Diana Huanan Hidalgo (Yonsei University of Graduate School) 김태훈 (연세대학교 의과대학 내과학교실 심장내과) 정경수 (Department of Internal Medicine Institute of Chest Diseases Severance Hospital) 김현창 (연세대학교)
저널정보
한국역학회 Epidemiology and Health Epidemiology and Health Vol.40
발행연도
2018.1
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1 - 10 (10page)

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OBJECTIVES: Previous studies have shown relatively low correlations between self-reported and accelerometer-assessed physical activity. However, this association differs by socio-demographic factors, and this relationship has not been fully investigated in the general population. Thus, we investigated the correlation between self-reported and accelerometer-assessed physical activity and whether it differed by demographic and socioeconomic factors among the Korean general population. METHODS: This cross-sectional study included 623 participants (203 men and 420 women) aged 30 to 64 years, who completed a physical activity questionnaire and wore a wrist-worn accelerometer on the non-dominant wrist for 7 days. We examined the agreement for metabolic equivalent task minutes per week (MET-min/wk) between the 2 measures and calculated Spearman correlation coefficients according to demographic and socioeconomic factors. RESULTS: The κ coefficient between tertiles of self-reported and accelerometer-assessed total MET-min/wk was 0.16 in the total population, suggesting overall poor agreement. The correlation coefficient between the 2 measurements was 0.26 (p<0.001) in the total population, and the correlation tended to decrease with increasing age (p for trend <0.001) and depression scores (p for trend <0.001). CONCLUSIONS: We found a low correlation between self-reported and accelerometer-assessed physical activity among healthy Korean adults, and the correlation decreased with age and depression score. When studying physical activity using accelerometers and/or questionnaires, age and depression need to be considered, as should differences between self-reported and accelerometer-assessed physical activity.

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