J Korean Med Sci.  2020 Jan;35(3):e25. 10.3346/jkms.2020.35.e25.

Association between Timed Up and Go Test and Subsequent Functional Dependency

  • 1Department of Family Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
  • 2Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
  • 3Department of Internal Medicine, Asan Medical Center, Seoul, Korea.
  • 4Department of Internal Medicine, Bobath Memorial Hospital, Seongnam, Korea.
  • 5Department of Family Medicine, Asan Medical Center, Seoul, Korea.
  • 6Department of Family Medicine, Seoul National University Hospital, Seoul, Korea.
  • 7Department of Internal Medicine, Inje University Seoul Paik Hospital, Seoul, Korea.
  • 8Department of Family Medicine, Hallym University Dongtan Sacred Heart Hospital, Seoul, Korea. lull@hallym.ac.kr


This study aimed to evaluate the association between baseline results of the Timed Up and Go (TUG) test and subsequent functional dependency occurrence.
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.
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).
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.


Community-Based Long-Term Care; Frailty; Gait; Geriatric Assessment
Full Text Links
  • JKMS
export Copy
  • Twitter
  • Facebook
Similar articles
Copyright © 2021 by Korean Association of Medical Journal Editors. All rights reserved.     E-mail: koreamed@kamje.or.kr