An outcome measure of functionality and @entity158 in XXXX with low back disorder: A validation study of the Iranian version of Core Outcome Measures Index.

@entity1 @entity2649 @entity158 @entity717 @entity850 @entity890
BACKGROUND: @entity890 ( @entity890 ) and @entity2649 ( @entity2649 ) are the most common diagnoses of low back and leg @entity158 symptoms. This study aimed to cross-culturally translate, and validate the Core Outcome Measures Index (COMI) in Iran. METHODS: The translation and cross-cultural adaptation of the original questionnaire were performed in accordance with published guidelines. A total of 121 @entity1 with @entity890 or @entity2649 were asked to respond to the questionnaire at two points in time: Pre and postoperative assessments (6 months follow-up). The @entity717 Index (ODI) also was completed. To test the reliability, the internal consistency was assessed by Cronbach's alpha coefficient, and validity was assessed using convergent validity. Responsiveness to change also was assessed for comparing @entity1 ' pre and postoperative scores. RESULTS: The Cronbach's alpha coefficients for the COMI at pre and postoperative assessments ranged from 0.79 to 0.82, indicating a good internal consistency. The change in the ODI after surgery was strongly correlated with change in the COMI, lending support to its good convergent validity (r = 0.79 for @entity890 and r = 0.77 for @entity2649 ; P < 0.001). In addition, the correlation of each item with its hypothesized subscale of the COMI showed satisfactory results suggesting, that the items had a substantial association with the subscale, representing the concept. Further analysis also indicated that the questionnaire was responsive to change (P < 0.0001). CONCLUSION: The Iranian version of COMI performed well, and the findings suggest that it is a reliable and valid measure of back @entity158 treatment evaluation among @entity890 and lumbar canal @entity850 @entity1 .
