J Korean Orthop Assoc.  2009 Jun;44(3):350-359. 10.4055/jkoa.2009.44.3.350.

Cross-Cultural Adaptation and Validation of the Korean Version of the Neck Disability Index

• Song KJ
• Choi BW
• Kim SJ
• Yoon SJ

• KMID: 2186344
• DOI: http://doi.org/10.4055/jkoa.2009.44.3.350

Abstract

PURPOSE: To translate and culturally adapt a Korean version of the Neck Disability Index (NDI), as well as to validate its use in Korean patient.
MATERIALS AND METHODS
The NDI was linguistically translated into Korean and the prefinal version was assessed and modified by a pilot study. The Korean version was tested on 60 patients with degenerative cervical spine disease to verify the reliability and validity. The test-retest reliability, internal consistency, concurrent validity, and construct validity were examined by a comparison with the VAS and SF-36.
RESULTS
The intraclass correlation coefficient of test-retest reliability was 0.927. The reliability estimated by the internal consistency reached a Cronbach's alpha of 0.82. The correlation of the NDI with VAS was r=0.489 (p=0.002) and correlation between NDI and SF-36 was r=-0.44 (p<0.01). The physical health component score of SF-36 showed a high correlation with the NDI as well as a high correlation between VAS and mental health component scores of SF-36.
CONCLUSION
The Korean version of the NDI is a reliable and valid instrument for measuring the disability in Korean patient with cervical problems and can be useful in future clinical studies in Korea.

Keyword

Neck Disability Index; Cross-cultural adaptation; Validity

MeSH Terms

Buprenorphine
Humans
Korea
Mental Health
Neck
Pilot Projects
Reproducibility of Results
Spine
Buprenorphine

Figure

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  Fig. 1 Comparison of the mean values of NDI, VAS, SF-36 according to the sexual difference.

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  Fig. 2 Comparison of the mean values of NDI, VAS, SF-36 according to the diagnosis.

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