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Validation of Thai versions of the Neck Disability Index and Neck Pain and Disability Scale in patients with neck pain.
Spine (Phila Pa 1976). 2011 Oct 01; 36(21):E1415-21.S

Abstract

STUDY DESIGN

Cross-cultural validation of the Neck Disability Index (NDI) and Neck Pain and Disability Scale (NPDS).

OBJECTIVE

To translate and test the psychometric properties of Thai versions of the NDI and NPDS questionnaires.

SUMMARY OF BACKGROUND DATA

The NDI and NPDS are questionnaires commonly used to measure neck pain and disability. The original versions of the NDI and NPDS have been translated into many languages but there are no validated Thai versions.

METHODS

Translation and cross-cultural adaptation of the original English versions of the NDI and NPDS were performed according to published guidelines. A total of 185 patients with neck pain participated in the study and were asked to complete the Neck Disability Index-Thai version (NDI-TH), Neck Pain Disability Scale-Thai version (NPDS-TH), and a visual analogue scale (VAS; 0-10). Psychometric evaluation included factor analysis, internal consistency, test-retest reliability, agreement, and convergent validity. Test-retest reliability for the NDI-TH was examined in 20 patients and in 17 for the NPDS-TH. Patients completed the questionnaires twice with an interval of 48 hours.

RESULTS

Factor analysis revealed a single-factor solution for the NDI-TH and three factor solution for the NPDS-TH. Cronbach α values for the NDI-TH and NPDS-TH were excellent (0.85 and 0.96, respectively). The three NPDS-TH subscales ranged from 0.90 to 0.94. Good to excellent test-retest reliability was demonstrated for all measurements (Intraclass Correlation Coefficient range = 0.74-0.91, P < 0.001). The NDI-TH, NPDS-TH, and NPDS-TH subscales were moderately correlated with the VAS (range, r = 0.61-0.76, P < 0.001). The minimal detectable change was 16.1 points for the NDI-TH (scale range = 0-100) and 21.8 points for NPDS-TH (scale range = 0-100).

CONCLUSION

The NDI-TH and NPDS-TH seem to be reliable instruments to measure functional limitation and disability in Thai patients with neck pain. However, further research is still needed to determine responsiveness and validity of these questionnaires.

Authors+Show Affiliations

Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Thailand. sureeporn.uthaikhup@cmu.ac.thNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Validation Study

Language

eng

PubMed ID

21228749

Citation

Uthaikhup, Sureeporn, et al. "Validation of Thai Versions of the Neck Disability Index and Neck Pain and Disability Scale in Patients With Neck Pain." Spine, vol. 36, no. 21, 2011, pp. E1415-21.
Uthaikhup S, Paungmali A, Pirunsan U. Validation of Thai versions of the Neck Disability Index and Neck Pain and Disability Scale in patients with neck pain. Spine (Phila Pa 1976). 2011;36(21):E1415-21.
Uthaikhup, S., Paungmali, A., & Pirunsan, U. (2011). Validation of Thai versions of the Neck Disability Index and Neck Pain and Disability Scale in patients with neck pain. Spine, 36(21), E1415-21. https://doi.org/10.1097/BRS.0b013e31820e68ac
Uthaikhup S, Paungmali A, Pirunsan U. Validation of Thai Versions of the Neck Disability Index and Neck Pain and Disability Scale in Patients With Neck Pain. Spine (Phila Pa 1976). 2011 Oct 1;36(21):E1415-21. PubMed PMID: 21228749.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Validation of Thai versions of the Neck Disability Index and Neck Pain and Disability Scale in patients with neck pain. AU - Uthaikhup,Sureeporn, AU - Paungmali,Aatit, AU - Pirunsan,Ubon, PY - 2011/1/14/entrez PY - 2011/1/14/pubmed PY - 2012/2/16/medline SP - E1415 EP - 21 JF - Spine JO - Spine (Phila Pa 1976) VL - 36 IS - 21 N2 - STUDY DESIGN: Cross-cultural validation of the Neck Disability Index (NDI) and Neck Pain and Disability Scale (NPDS). OBJECTIVE: To translate and test the psychometric properties of Thai versions of the NDI and NPDS questionnaires. SUMMARY OF BACKGROUND DATA: The NDI and NPDS are questionnaires commonly used to measure neck pain and disability. The original versions of the NDI and NPDS have been translated into many languages but there are no validated Thai versions. METHODS: Translation and cross-cultural adaptation of the original English versions of the NDI and NPDS were performed according to published guidelines. A total of 185 patients with neck pain participated in the study and were asked to complete the Neck Disability Index-Thai version (NDI-TH), Neck Pain Disability Scale-Thai version (NPDS-TH), and a visual analogue scale (VAS; 0-10). Psychometric evaluation included factor analysis, internal consistency, test-retest reliability, agreement, and convergent validity. Test-retest reliability for the NDI-TH was examined in 20 patients and in 17 for the NPDS-TH. Patients completed the questionnaires twice with an interval of 48 hours. RESULTS: Factor analysis revealed a single-factor solution for the NDI-TH and three factor solution for the NPDS-TH. Cronbach α values for the NDI-TH and NPDS-TH were excellent (0.85 and 0.96, respectively). The three NPDS-TH subscales ranged from 0.90 to 0.94. Good to excellent test-retest reliability was demonstrated for all measurements (Intraclass Correlation Coefficient range = 0.74-0.91, P < 0.001). The NDI-TH, NPDS-TH, and NPDS-TH subscales were moderately correlated with the VAS (range, r = 0.61-0.76, P < 0.001). The minimal detectable change was 16.1 points for the NDI-TH (scale range = 0-100) and 21.8 points for NPDS-TH (scale range = 0-100). CONCLUSION: The NDI-TH and NPDS-TH seem to be reliable instruments to measure functional limitation and disability in Thai patients with neck pain. However, further research is still needed to determine responsiveness and validity of these questionnaires. SN - 1528-1159 UR - https://www.unboundmedicine.com/medline/citation/21228749/Validation_of_Thai_versions_of_the_Neck_Disability_Index_and_Neck_Pain_and_Disability_Scale_in_patients_with_neck_pain_ L2 - https://doi.org/10.1097/BRS.0b013e31820e68ac DB - PRIME DP - Unbound Medicine ER -