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Ann Rehabil Med  <  Volume 22(3); 2018 <  Articles

Ann Geriatr Med Res 2018; 22(3): 137-144  https://doi.org/10.4235/agmr.2018.22.3.137
Discrepancies in the Prevalence of Known Frailty Scales: Korean Frailty and Aging Cohort Study
Kyoung Jin Kim1, Jinyoung Shin1, Jaekyung Choi1, Chang Won Won2
1Department of Family Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
2Department of Family Medicine, College of Medicine, Kyung Hee University, Seoul, Korea
Correspondence to: Jaekyung Choi, MD, PhD
https://orcid.org/0000-0002-0875-7505
Department of Family Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 05030, Korea
Tel: +82-2-2030-7683
Fax: +82-2-2030-5009
E-mail: cjk@kuh.ac.kr
Received: July 17, 2018; Revised: September 1, 2018; Accepted: September 16, 2018; Published online: September 30, 2018.
© The Korea Geriatrics Society. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Background: The identification of frailty is considered an effective means of enhancing healthy aging. The definition of frailty affects its prevalence and associated institutionalization and mortality. This study aimed to identify the prevalence of frailty among community-dwelling older Korean adults according to different frailty scales.
Methods: This cross-sectional study based on the Korean Frailty and Aging Cohort Study represents a population of 1,318 people aged 70 years and older. Discrepancies in the prevalence of frailty were evaluated among six validated assessment tools. Multivariate logistic regression analysis was used to evaluate the prevalence of frailty according to its predictors (age, sex, and socioeconomic status).
Results: The mean age of the participants was 76.1 (standard deviation, 3.9) years, and females comprised 51.0%. The prevalence of frailty varied from 2.5% to 12.4% using the Study of Osteoporotic Fracture frailty index and the Korean version of the Fatigue, Resistance, Ambulation, Illnesses, and Loss of Weight scale, respectively. The prevalence of frailty was higher among women and frailty rates increased with age on all scales. The risks of prefrailty and frailty were increased among participants with a low education level after adjusting for age, sex, residence, and income level.
Conclusion: In this study, the prevalence of frailty was found to vary depending on the scale used. Efforts aimed at screening and providing intervention for frailty and frail adults at risk, respectively, are needed to improve health outcomes considering the characteristics of each frailty scale and the determined prevalence.
Keywords: Frailty, Prevalence, Frailty scale, Older, Korean Frailty and Aging Cohort Study


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