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KMID : 0607720110220030302
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Journal of Korean Community Nursing
2011 Volume.22 No. 3 p.302 ~ p.314
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Validation of Instruments to Classify the Frailty of the Elderly in Community
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Lee In-Sook
Park Young-Im
Park Eun-Ok
Lee Soon-Hee
Jeong Ihn-Sook
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Abstract
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Purpose: This study aimed to validate instruments to classify the frailty of Korean elderly people in community.
Methods: For this study, 632 elders were selected from community?based elderly houses and home visiting
registries, and data on frailty were collected using three instruments during November, 2008. The Korean Frail Scale (KFS) was composed of 10 domains with the maximum score of 20. The Edmonton Frail Scale (EFS) had 10 domains with the maximum score of 17. The 25_Japan Frail Scale (25_JFS) was composed of 6 domains with the maximum score of 25. Internal consistency was measured with Cronbach’s α. Sensitivity, specificity and area under the curve (AUC) of ROC were measured to see validity with long?term care insurance grade as a gold standard.
Results: The Cronbach’s α was .72 for KFS, .55 for EFS, and .80 for 25_JFS. Sensitivity, specificity, and AUC were 70.0%, 83.2%, and .83, respectively, at cutting point 10.5 for the KFS, 50.0%, 80.9%, and .66, respectively, at 8.5 for EFS, and 80.0%, 85.9%, and .86, respectively, at 12.5 for 25_JFS.
Conclusion: KFS and three JFS showed favorable internal consistency and predictive validity. Further longitudinal studies are recommended to confirm predictive validity.
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KEYWORD
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Frail elderly, Sensitivity, Specificity, Area under curve
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