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KMID : 0191120200350030025
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Journal of Korean Medical Science
2020 Volume.35 No. 3 p.25 ~ p.25
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Association between Timed Up and Go Test and Subsequent Functional Dependency
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Lee Ji-Eun
Chun Hye-Jin
Kim Young-Sang
Jung Hee-Won
Jang Il-Young
Cha Hyun-Min
Son Ki-Young
Cho Be-Long
Kwon In-Soon
Yoon Jong-Lull
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Abstract
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Background: This study aimed to evaluate the association between baseline results of the Timed Up and Go (TUG) test and subsequent functional dependency occurrence.
Methods: From the National Health Insurance Service-Senior Cohort database, we identified 39,519 people who participated in the National Screening Program for Transitional Ages at the age of 66 during 2007?2008. Impaired mobility was defined as taking 10 seconds or longer to perform the TUG test. Functional dependency occurrence was defined as the initiation of receiving national Long-Term Care Insurance services?home care or admission to long-term care facilities. Cox proportional hazard regression models were used to assess the hazard ratios (HRs) for dependency occurrence according to baseline TUG test results.
Results: The mean follow-up period was 5.7 years. Occurrence rates of dependency were 2.0 and 3.4 cases per 1,000 person-years in the normal and impaired TUG groups, respectively. Impaired mobility was associated with a higher risk of functional dependency occurrence (adjusted HR [aHR], 1.65; 95% confidence interval [CI], 1.40?1.95; P < 0.001). Additionally, in the subgroup analysis for the participants with intact baseline activities of daily living, impaired mobility was associated with a higher risk of dependency occurrence (aHR, 1.65; 95% CI, 1.33?2.04; P < 0.001).
Conclusion: The TUG test might be a useful predictive marker of subsequent functional dependency occurrence. Intervention to prevent functional dependency may be helpful for older adults with impairment on the TUG test.
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KEYWORD
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Community-Based Long-Term Care, Frailty, Gait, Geriatric Assessment
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