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Comparison of self-reported and accelerometer-assessed measurements of physical activity according to socio-demographic characteristics in Korean adults

Authors
 Seung Won Lee  ;  Jee-Seon Shim  ;  Bo Mi Song  ;  Ho Jae Lee  ;  Hye Yoon Bae  ;  Ji Hye Park  ;  Hye Rin Choi  ;  Jae Won Yang  ;  Ji Eun Heo  ;  So Mi Jemma Cho  ;  Ga Bin Lee  ;  Diana Huanan Hidalgo  ;  Tae-Hoon Kim  ;  Kyung Soo Chung  ;  Hyeon Chang Kim 
Citation
 EPIDEMIOLOGY AND HEALTH, Vol.40 : e2018060, 2018 
Journal Title
 EPIDEMIOLOGY AND HEALTH 
Issue Date
2018
MeSH
Accelerometry* ; Adult ; Age Factors ; Cross-Sectional Studies ; Depression/epidemiology ; Exercise*/psychology ; Female ; Humans ; Male ; Middle Aged ; Reproducibility of Results ; Republic of Korea/epidemiology ; Self Report*
Keywords
Accelerometer ; Korea ; Physical activity ; Questionnaire
Abstract
OBJECTIVES: Previous studies have shown relatively low correlations between self-reported and accelerometer-assessed physical activity (PA). 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 PA 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 PA 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 kappa 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 PA among healthy Korean adults, and the correlation decreased with age and depression score. When studying PA using accelerometers and/or questionnaires, age and depression need to be considered, as should differences between self-reported and accelerometer-assessed PA.
Files in This Item:
T201903296.pdf Download
DOI
10.4178/epih.e2018060
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Preventive Medicine and Public Health (예방의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Tae Hoon(김태훈)
Kim, Hyeon Chang(김현창) ORCID logo https://orcid.org/0000-0001-7867-1240
Shim, Jee Seon(심지선) ORCID logo https://orcid.org/0000-0002-8671-3153
Jung, Kyung Soo(정경수) ORCID logo https://orcid.org/0000-0003-1604-8730
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/173023
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