Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/47003
Title: Translating the research diagnostic criteria for temporomandibular disorders into Malay: evaluation of content and process
Authors: Khoo, S.-P.
Jin Yap, A.U. 
Chan, Y.H.
Bulgiba, A.M.
Keywords: Cross-cultural adaptation
Internal consistency
Temporomandibular disorders
Translation
Validity
Issue Date: 2008
Source: Khoo, S.-P.,Jin Yap, A.U.,Chan, Y.H.,Bulgiba, A.M. (2008). Translating the research diagnostic criteria for temporomandibular disorders into Malay: evaluation of content and process. Journal of Orofacial Pain 22 (2) : 131-138. ScholarBank@NUS Repository.
Abstract: Aims: To develop a Malay-language version of the Axis II Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) through a formal translation/back-translation pro-cess and to summarize available data about the psychometric properties of the translated scales. Methods: To cross-culturally adapt the instrument, the RDC/TMD underwent translation using a forward-backward method. Subjects were recruited to test the congruency between translated and original versions of the RDC/TMD. The psychometric properties of 3 domains (Graded Chronic Pain Scale, Nonspecific Physical Symptoms, and Depression) of the RDC/TMD were examined, and the literature on this topic was reviewed. Results: All the items scored 93% to 100% congruency. Cronbach's alphas for Graded Chronic Pain Scale, Nonspecific Physical Symptoms, and Depression were 0.77, 0.71, and 0.88, respectively (n = 40). The test-retest reliability of scores (intraclass correlation coefficient [ICC]) and levels (Spearman's rho) for these domains showed ICCs of 0.97, 0.94, and 0.95, respectively, with a lowest ICC value of 0.84 (n = 40); the Spearman's rho values were 0.93, 0.74, and 0.74, respectively. The discriminant validity between patients with pain symptoms (n = 40) and normal pain-free controls (n = 40) were statistically significant (T < .001). These correlations provide support for the internal consistency and validity of the Graded Chronic Pain Scale, Nonspecific Physical Symptoms, and Depression domains of the translated version of the RDC/TMD, which were found to be comparable to the psychometric properties of the original and other international translated versions. Conclusion: The cross-cultural adaptation of the RDC/TMD into the Malay language is suitable for use in Malaysia.
Source Title: Journal of Orofacial Pain
URI: http://scholarbank.nus.edu.sg/handle/10635/47003
ISSN: 10646655
Appears in Collections:Staff Publications

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