Cross-Cultural Adaptation, Reliability, and Validity of Urdu Version of Örebro Musculoskeletal Pain Screening Questionnaire in Non-Specific Low Back Pain Patients

Objective: To translate the Örebro Musculoskeletal Pain Screening Questionnaire (ÖMPSQ) into Urdu and to determine the psychometric properties of its Urdu version. METHODS: This cross-sectional study recruited 300 participants (18-60 years) with non-specific low back pain (NSLBP), who were able to read Urdu. Test-retest reliability was assessed using intra-class correlation coefficient (ICC), and reproducibility through Cronbach's α. Face and content validity were examined via individual interviews, and construct validity by correlating with relevant reference standards. Exploratory factor analysis (EFA) & confirmatory factor analysis (CFA) was also carried out. RESULTS: ÖMPSQ was successfully translated into Urdu version with acceptable face and content validity. ÖMPSQ Urdu version showed acceptable internal consistency (α=0.789) & good test-retest reliability (ICC=0.784, 95% confidence interval, p