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KMID : 0357220140260020082
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Journal of Korean Society Physical Therapy
2014 Volume.26 No. 2 p.82 ~ p.89
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Development of Instrument for Korean Osteoarthritis Impact Measurement Scale (KAIMS) in Hip and Knee Osteoarthritis
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Yi Seung-Ju
Kim Jin-Seop
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Abstract
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Purpose: This study was conducted in order to develop an instrument for the Korean Osteoarthritis Impact Measurement scale (KAIMS) in hip and knee osteoarthritis patients.
Methods: A sample of 426 subjects was recruited in Ulsan metropolitan city (six hospitals and clinics) and Andong city (five hospitals and clinics) from June 2010 to May 2011. Item internal consistency and item discriminant validity were analyzed on the item-level, and floor (%) and ceiling (%) effect were analyzed on the scale-level. Exploratory factor analysis was performed for construction of items in the KAIMS instrument; confirmative factor analysis was also performed to test the fit of the model.
Results: In 426 respondents, age was 64.3 years. The reliability for r coefficient 0.90 (mobility) and 0.89 (pain and stiffness) (Cronbach’ s alpha 0.95, 0.95 respectively) was high in the test-retest, and there was no significant difference in paired t- est (p>0.05). Item internal consistency (α=0.92, α=0.87 respectively) was also high. It was constructed of two factors (mobility, pain and stiffness dimension) and nine items in explanatory factor analysis; results of confirmatory factor analysis also indicated that the dimensional structure model was fitted well in the test of model fit (χ2=83.83, df=26, p=0.000; RMR=0.05; GFI=0.96; AGFI=0.83).
Conclusion: In conclusion, the results of this study showed that the KAIMS that was developed was a reliable and valid instrument for measurement of osteoarthritis (OA) patients. We recommend further research for additional development of the instrument on OA in Korea.
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KEYWORD
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Korean Osteoarthritis Impact Measurement Scale (KAIMS), Measurement Scale, Validity, Reliability
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