Subacute and chronic low back pain. Reliability and validity of a Swedish version of the Roland and Morris Disability Questionnaire
Johansson E, Lindberg P.
Department of Public Health and Caring Science, Uppsala University, Sweden
The purpose of this study was to investigate test-retest reliability and concurrent validity of a Swedish version of the Roland and Morris Disability Questionnaire (RM-Sw), and to describe demographic factors in patients with low back pain of at least 4 weeks' duration seeking outpatient physical therapy treatment in primary care settings. Seventy-two patients participated in the study. The intraclass correlation coefficient for a one-week test-retest interval was 0.88. There was moderate positive correlation with measures of perceived disability (r = 0.64, p < 0.001; r = 0.69, p < 0.001) and pain severity (r = 0.54, p < 0.001), and low negative correlation with measures of perceived life control (r = -0.32, p < 0.01) and general activity (r = -0.27, p < 0.05). Gender, education and occupation were only moderately related to RM-Sw scores, explaining 14% of the variance in the scores. It is concluded that RM-Sw is a reliable and valid measure of functional ability in low back pain.
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