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. 2011 Oct;26(10):1364-70.
doi: 10.3346/jkms.2011.26.10.1364. Epub 2011 Oct 1.

Psychometric characteristics of the Korean version of the Roland-Morris Disability Questionnaire

Jeeyoun Moon  1 , Yong Chul Kim, Soo Young Park, Sang Chul Lee, Seung Pyo Choi, Francis Sahngun Nahm, Pyung Bok Lee, Eui Kyung Goo, Jong-Man Kang
Affiliations

Psychometric characteristics of the Korean version of the Roland-Morris Disability Questionnaire

Jeeyoun Moon et al. J Korean Med Sci. 2011 Oct.

Abstract

The aims of this study were; 1) to develop the final version of the Korean Roland-Morris Disability Questionnaire (RDQ), and 2) to compare the responsiveness between the RDQ and the Oswestry Disability Index (ODI) scores in patients having low back pain. The psychometric properties of the final Korean RDQ were evaluated in 221 patients. Among them, 30 patients were reliability tested. Validity was evaluated using an 11-point numerical rating scale (NRS) and the Korean ODI. The receiver operating characteristic (ROC) curve analysis of the RDQ and the ODI was compared in 54 patients with lumbar zygapophyseal (facet) joint pain. There was a moderate relationship between the RDQ and NRS (r = 0.59, P < 0.01) and a strongly positive correlation between the RDQ and the ODI (r = 0.76, P < 0.001). The Korean RDQ with the higher area under the ROC curve showed a better overall responsive performance than did the ODI in patients with lumbar facet joint pain after medial branch radiofrequency neurotomy (P < 0.01). The results of the study present the final version of the Korean RDQ is valid for assessing functional status in a Korean population with chronic low back pain.

Keywords: Low Back Pain; Oswestry Disability Index; Psychometric Properties; Roland-Morris Disability Questionnaire.

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Figures

Fig. 1
Fig. 1
Bland Altman plot for test-retest reliability of the Roland-Morris Disability Questionnaire: mean-against-difference graph. For each subject (n = 30), the mean of the 2 scores on the Korean RDQ at baseline (T0) and after 4-9 days (T1) and the difference between these time points (T1-T0) are plotted against each other.
Fig. 2
Fig. 2
Area under the receiver operating characteristic curves for the Roland-Morris Disability Questionnaire and Oswestry Disability Index at one month.
See this image and copyright information in PMC

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