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KMID : 1130220180220020080
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Annals of Geriatric Medicine and Research
2018 Volume.22 No. 2 p.80 ~ p.87
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Test-retest Reliability and Sensitivity to Change of a New Fall Risk Assessment System: A Pilot Study
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Kim Mi-Ji
Kim Sun-Young
Won Chang-Won
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Abstract
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Background: The new fall risk assessment (FRA) system is a composite and comprehensive assessment tool developed to predict the risk of falls. The aim of this pilot study was to examine the new FRA system’s test-retest reliability and sensitivity to change in community- dwelling older adults.
Methods: This was an observational study with a test-retest design and an 8-week fall prevention exercise program. Asample of 28 community-dwelling older adults with a mean age of 73.0 years (range, 65?80 years) participated in the study. The new FRA system was administered twice within a 7-day period for test-retest reliability expressed as intraclass correlation coefficient (ICC) and standard error of measurement (SEM) assessment. Eighteen subjects of them completed the 8-week fall prevention exercise intervention to evaluate the new FRA system’s sensitivity to change.
Results: In the evaluation of interrater reliability for the new FRA system, the ICC (95% confidence interval) of the total score was 0.77 (0.47?0.98), with good reliability. The SEM was 11.61 for the total FRA score. A good to excellent reliability was observed, with ICC levels of 0.73 to 0.91 for the 4 composite scores of the new FRA system. Following the 8-week exercise intervention, the mean total FRA score (effect size, 0.58) significantly increased (p=0.028).
Conclusion: The new FRA system has generally moderate to excellent interrater reliability and reliable sensitivity to change in community-dwelling older adults. Our findings provide support for the reliability of the new FRA system in healthy older adults without a fall history.
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KEYWORD
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Fall risk, Balance examination, Reliability, Sensitivity to change, Older adults
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