Short Form-McGill Pain Questionnaire-2 (SF-MPQ-2): A Cross-Cultural Adaptation and Validation Study of the Persian Version in Patients with Knee Osteoarthritis

Document Type : RESEARCH PAPER

Authors

1 Mashhad University Of Medical Sciences Mashhad Iran

2 Orthopedic Research Center Mashhad University of Medical Sciences, Mashhad, Iran.

3 Anesthesiologist, Pain Research Center Department of Anesthesiology, Intensive Care and Pain Control Mashhad University of Medical Sciences Ahmad-Abad Street, Mashhad, 91799-9199 Iran

4 Assistant Professor of Community Medicine Community Medicine Department, Faculty of Medicine Mashhad University of Medical Sciences

5 Orthopedic Research Center Mashhad University of Medical Sciences Ahmad-Abad Street, Mashhad, 91799-9199 Iran

Abstract

 
Background: We aimed to develop and validate the Persian version of Short Form McGill Pain Questionnaire-2 (SF-MPQ-2) in patients with knee osteoarthritis.
Methods: Translation and back translation was performed using Beaton’s guideline. After a consensus has achieved on the Persian version of SF-MPQ-2, it was administered to 30 patients with knee osteoarthritis in a pilot study. Then, we enrolled 100 patients with knee osteoarthritis to fill the final SF-MPQ-2 as well as SF-36 and WOMAC questionnaires. Forty-three patients returned 3 days after the initial visit to fill the Persian SF-MPQ-2 for the second time. Construct validity was tested by Pearson’s correlation coefficient between subscales of SF-MPQ-2 and subscales of SF-36 and WOMAC. Internal consistency for total and subscales was calculated by Cronbach’s alpha and reliability between test retest was performed using Intraclass correlation coefficient (ICC).
Results: ICC for subscales of SF-MPQ-2 ranged from 0.73 to 0.90. The ICC for total SF-MPQ-2 was 0.90. Cronbach’s alpha for subscales was 0.65-0.74 at the first visit and 0.58-0.81 at the second visit. Cronbach’s alpha for the total questionnaire was 0.88 and 0.91 at the first and second visit, respectively. Pearson’s correlation coefficient was highly significant when comparing subscales specifically with WOMAC (r=-0.47 to -0.61; P<0.001). Interscale correlation between subscales of SF-MPQ-2 was significant as well (r: 0.43-0.88, P<0.001).
Conclusions: Persian SF-MPQ-2 showed excellent reliability and good to excellent internal consistency throughout the questionnaire. It is a valid and reliable instrument for measuring the pain intensity and applicable in osteoarthritic pain assessment.

Keywords

References

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The Archives of Bone and Joint Surgery
Volume 3, Issue 1 - Serial Number 1
January 2015
Pages 45-50

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History

  • Receive Date: 05 March 2014
  • Revise Date: 08 January 2015
  • Accept Date: 05 July 2014

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