Analysis of the reliability and validity of the Turkish version of the intermittent and constant osteoarthritis pain questionnaire

Year 2015, Volume: 49 Issue: 5, 508 - , 24.09.2015

Suat Erel , Ibrahim Simsek Huseyin Ozkan

Abstract

Objective: The aim of this study was to analyze the validity and reliability of the Turkish version (ICOAP-TR) of the intermittent and constant osteoarthritis pain (ICOAP) questionnaire in patients with knee osteoarthritis (OA).
Methods: Thirty-eight volunteer patients diagnosed with knee OA answered the questionnaire twice with an interval of 2–4 days. The reliability of the measurement was assessed using Cronbach’s alpha coefficient and intraclass correlation (ICC) for test-retest reliability. Criterion validity was tested against the Western Ontario and McMaster Universities Arthritis Index (WOMAC) pain score and visual analog scale (VAS) designed to assess the perceived discomfort rated by the patient.
Results: Test-retest reliability was found to be ICC=0.942 for total score, 0.902 for constant pain subscale, and 0.945 for intermittent pain subscale. Internal consistency was tested using Cronbach’s alpha and was found to be 0.970 for total score, 0.948 for constant pain subscale, and 0.972 for intermittent pain subscale. For criterion validity, the correlation between the total score of ICOAP-TR and WOMAC pain subscale was r=0.779 (p<0.05), and correlation between total score of ICOAP-TR and VAS was r=0.570 (p<0.05).
Conclusion: The ICOAP-TR is a reliable and valid instrument to be used with patients with knee OA.

Keywords

Knee; osteoarthritis; pain; intermittent and constant osteoarthritis pain.

References

• Peat G, McCarney R, Croft P. Knee pain and osteoar- thritis in older adults: a review of community burden and current use of primary health care. Ann Rheum Dis 2001;60:91–7.
• Rosemann T, Laux G, Szecsenyi J, Wensing M, Grol R. Pain and osteoarthritis in primary care: factors associated with pain perception in a sample of 1,021 patients. Pain Med 2008;9:903–10.
• Gonçalves RS, Meireles AC, Gil JN, Cavalheiro LM, Rosado JO, Cabri J. Responsiveness of intermittent and constant osteoarthritis pain (ICOAP) after physical therapy for knee osteoarthritis. Osteoarthritis Cartilage 2012;20:1116–9.
• Hawker GA, Davis AM, French MR, Cibere J, Jordan JM, March L, et al. Development and preliminary psychometric testing of a new OA pain measure--an OARSI/OMER- ACT initiative. Osteoarthritis Cartilage 2008;16:409–14.
• Maillefert JF, Kloppenburg M, Fernandes L, Punzi L, Günther KP, Martin Mola E, et al. Multi-language transla- tion and cross-cultural adaptation of the OARSI/OMER- ACT measure of intermittent and constant osteoarthritis pain (ICOAP). Osteoarthritis Cartilage 2009;17:1293–6.
• Hawker GA. Measure of intermittent and constant osteo- arthritis pain: ICOAP. In: OARSI User Guide 2010.
• Tüzün EH, Eker L, Aytar A, Daşkapan A, Bayramoğlu M. Acceptability, reliability, validity and responsiveness of the Turkish version of WOMAC osteoarthritis index. Osteo- arthritis Cartilage 2005;13:28–33.
• Yakut Y, Yakut E, Bayar K, Uygur F. Reliability and va- lidity of the Turkish version short-form McGill pain questionnaire in patients with rheumatoid arthritis. Clin Rheumatol 2007;26:1083–7.
• Gul ED, Yilmaz O, Bodur H. Reliability and validity of the Turkish version of the knee injury and osteoarthritis outcome score-physical function short-form (KOOS- PS). J Back Musculoskelet Rehabil 2013;26:461–6.
• Atamaz F, Hepguler S, Oncu J. Translation and validation of the Turkish version of the arthritis impact measure- ment scales 2 in patients with knee osteoarthritis. J Rheu- matol 2005;32:1331–6.
• Gonçalves RS, Cabri J, Pinheiro JP, Ferreira PL, Gil J. Cross-cultural adaptation and validation of the Portu- guese version of the intermittent and constant osteoar- thritis pain (ICOAP) measure for the knee. Osteoarthritis Cartilage 2010;18:1058–61.
• Kessler S, Grammozis A, Günther KP, Kirschner S. The intermittent and constant pain score (ICOAP) - a ques- tionnaire to assess pain in patients with gonarthritis. [Ar- ticle in German] Z Orthop Unfall 2011;149:22–6.
• Bond M, Davis A, Lohmander S, Hawker G. Responsive- ness of the OARSI-OMERACT osteoarthritis pain and function measures. Osteoarthritis Cartilage 2012;20:541– 7.
• Guillemin F, Bombardier C, Beaton D. Cross-cultural adaptation of health-related quality of life measures: lit- erature review and proposed guidelines. J Clin Epidemiol 1993;46:1417–32.
• Beaton DE, Bombardier C, Guillemin F, Ferraz MB. Guidelines for the process of cross-cultural adapta- tion of self-report measures. Spine (Phila Pa 1976) 2000;25:3186–91.
• Kellgren JH, Lawrence JS. Radiological assessment of osteo-arthrosis. Ann Rheum Dis 1957;16:494–502.
• Bartko JJ. The intraclass correlation coefficient as a mea- sure of reliability. Psychol Rep 1966;19:3–11.