International Journal of Preventive Medicine (Int J Prev Med)2008-7802022017030817701770ENDepartment of Psychiatry, Psychosomatic Medicine Research Center, Tehran University of Medical Sciences, TehranSchool of Medicine, Tehran University of Medical Sciences, TehranSport Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, TehranSport Medicine Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran & 4Spine Division, Noorafshar Rehabilitation and Sport Medicine Hospital, TehranDepartment of Psychiatry, Psychosomatic Medicine Research Center, Tehran University of Medical Sciences, TehranDepartment of Psychiatry, Psychosomatic Medicine Research Center, Tehran University of Medical Sciences, TehranDepartment of Psychiatry, Psychosomatic Medicine Research Center, Tehran University of Medical Sciences, Tehran & Psychiatry and Psychology Research Center, Tehran University of Medical Sciences, Tehran20170308<p><strong>Background:</strong> Screening of psychosocial risk factors for chronic low back pain (LBP) is essential. The &Ouml;rebro Musculoskeletal Pain Screening Questionnaire (&Ouml;MPSQ) is one of the most recognized and widely used instruments for this purpose. This study aimed to translate the &Ouml;MPSQ into Persian, to adapt it for Iranian culture, and to investigate its psychometric properties.</p><p><strong>Methods:</strong> Using a linguistic methodology, the &Ouml;MPSQ was translated into Persian according to the World Health Organization guideline. A total of 106 patients with LBP participated in the study. Internal consistency and test‑retest reliability were evaluated. Concurrent validity was estimated<br />with Pearson&rsquo;s correlation between the &Ouml;MPSQ and short form health survey (SF‑12), Hospital Anxiety and Depression Scale (HADS), and visual analog scale (VAS). Factor analysis was used<br />to evaluate dimensionality.</p><p><strong>Results:</strong> The content validity index was 0.80. The instrument had a good test‑retest reliability (intraclass correlation coefficient = 0.82) and internal consistency (Cronbach&rsquo;s &alpha; =0.82). Factor analysis indicates that factorial structure of Persian version was similar to original questionnaire. There was a significant correlation (r = 0.252&ndash;0.639, P &lt; 0.01) between VAS score and all the &Ouml;MPSQ domains. Physical component summary of SF‑12 was positively correlated with miscellaneous domain (r = 384, P &lt; 0.05) and negatively correlated with psychology domain of &Ouml;MPSQ (r = &minus;0.364, P &lt; 0.05). A significant correlation between total score and anxiety component of HADS and psychology domain of &Ouml;MPSQ was found (r = 0.49, P &lt; 0.01 and r = 0.442, P &lt; 0.05, respectively). Correlations between the &Ouml;MPSQ<br />and SF‑12 and HADS and VAS indicate acceptable concurrent validity.</p><p><strong>Conclusions:</strong> The Persian version of &Ouml;MPSQ was as a valid and reliable instrument and also a good cross‑cultural equivalent for original English version.</p><p>Keywords: Linguistic validation, low back pain, &Ouml;rebro Musculoskeletal Pain Screening Questionnaire, psychometric properties</p>http://ijpm.mui.ac.ir/index.php/ijpm/article/view/1770http://ijpm.mui.ac.ir/index.php/ijpm/article/download/1770/2060