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Ann Geriatr Med Res > Volume 14(4); 2010 > Article
Journal of the Korean Geriatrics Society 2010;14(4):191-202.
DOI: https://doi.org/10.4235/jkgs.2010.14.4.191    Published online December 31, 2010.
The Validity and Reliability of Korean Frailty Index
Hwan Sik Hwang, In Sun Kwon, Byung Joo Park, Belong Cho, Jong Lull Yoon, Chang Won Won
1Department of Family Medicine, Hanyang University College of Medicine, Seoul, Korea.
2Department of Internal Medicine, Inje University Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea. insoonkwon@hanmail.net
3Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.
4Department of Family Medicine, Seoul National University College of Medicine, Seoul, Korea.
5Department of Family Medicine, Hallym University College of Medicine, Seoul, Korea.
6Department of Family Medicine, Kyung Hee University, College of Medicine, Seoul, Korea.
한국형 노쇠측정도구 개발 및 타당도 조사
황환식1.권인순2.박병주3.조비룡4.윤종률5.원장원6
한양대학교 의과대학 가정의학교실1, 인제대학교 의과대학 서울백병원 내과학교실2, 서울대학교 의과대학 예방의학교실3,
서울대학교 의과대학 가정의학교실4, 한림대학교 의과대학 가정의학교실5, 경희대학교 의과대학 가정의학교실6
Abstract
BACKGROUND
Frailty is a syndrome that involves decreased reserve capacity and loss of physiological function caused by aging. This study was done to develop a frailty index for the Korean elderly.
METHODS
The Korean frailty index 8-item questionnaire was established by a panel of experts from the Korean Geriatrics Society. Demographic characteristics, the cardiovascular health study (CHS) frailty index and the Korean frailty index were completed for 240 men and women over 65 years visiting three selected community senior's welfare centers from June 2009 to August 2009. Reliability was tested by internal consistency (Cronbach's alpha) and the test-retest reliability at a 2-week interval. Validity was tested by a criterion validity comparison between the CHS frailty index and the validity index estimated by the reliability index.
RESULTS
Cronbach's alpha was 0.65. The range of Kappa value for each item was 0.27-0.65. The Kappa value of the criterion validity comparison with the CHS index for the Korean frailty index was 0.5. The validity indexes for the items estimated by the reliability index ranged from 0.27-0.52 to 0.65-0.81.
CONCLUSION
The Korean frailty index is a valid and reliable instrument. However, fine-tuning such as item-revision is needed prior to use in the practical setting.
Key Words: Frail elderly, Frailty index


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