Cross-cultural adaptation, validity, and reliability of the Arabic version of the shoulder disability questionnaire

Abstract

Background: Following low back and knee discomfort, shoulder pain (SP) is the third most common musculoskeletal problem, with an estimated global prevalence of 1.0%-4.8%. The (Shoulder Disability Questionnaire (SDQ)) is used to investigate pain in patients with shoulder-related disabilities, and it represents a promising psychometric property but has no Arabic version. Aim: To implement a cross-cultural approach to create an Arabic version of the SDQ and evaluate its psychometric properties in patients with nonspecific SP. Methods: 231 people were diagnosed with nonspecific SP. They completed the SDQ-Arabic, which was translated using global standards. The structural validity (Exploratory Factor Analysis (EFA)), reliability (internal consistency (Cronbach alpha)), and (intraclass correlation coefficients (ICC)) were assessed. Results: Using EFA, the involvement psychosocial component and activity subscale were also identified.The existence of internal consistency was supported by the results of subscales 1 and 2 (α=0.960 and 0.950), respectively, with (α= 0.977) as a total score. The construct validity was satisfactory, and the test was applicable (EFA>0.4).Conclusions: This study provides clinicians with an Arabic version of the SDQ that has been successfully adapted. The SDQ-Arabic tool is valid for patients with shoulder-related disabilities with non-specific SP assessment.