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KMID : 0357220110230060023
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Journal of Korean Society Physical Therapy
2011 Volume.23 No. 6 p.23 ~ p.29
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Internal Consistency and Concurrent Validity of Korean Language Version of WHODAS 2.0: 12 Item-Self Administered
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Lee Hae-Jung
Kim Da-Jeong
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Abstract
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Purpose: The aim of this study was to validate the Korean version of World Health Organization Disability Assessment Schedule 2.0 (KWHODAS 2.0) in 12 item?self administered version (12?self).
Methods: The KWHODAS 2.0 and Korean Functional Rating index (KFRI) were tested for internal consistency, ceiling and floor effects, and concurrent validity in 111 patients with low back pain and/or neck pain.
Results: A very high level of internal consistency was shown for both instruments; ��=0.96 with KWHODAS 2.0; 12?self and ��=0.97 for KFRI. No ceiling and/or floor effects were found in both the instruments. The KWHODAS 2.0 and KFRI were highly correlated (r=0.77), and the relationship of each item between KWHODAS 2.0 and KFRI was ranging from r=0.09 to 0.72.
Conclusion: We conclude that the KWHODAS 2.0: 12?self and KFRI are reliable and are valid instruments for the measurement of disability in Korean speaking patients with low back and/or neck pain. Both instruments, the KWHODAS 2.0;
12?Self and KFRI are now suitable for use in clinical practice and research applications.
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KEYWORD
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WHODAS 2.0, Functional Rating Index, Validity, Low back pain, Neck pain
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