Clinimetrics: Short Western Ontario Rotator Cuff Index

Description: The shorter version of the Western Ontario Rotator Cuff Index (Short-WORC) is a seven-item questionnaire that is specific for patients with rotator cuff disorders. It is an abbreviated version of its parent, the Western Ontario Rotator Cuff Index (WORC). The original WORC contained five domains that assessed health-related quality of life, whereas the Short-WORC contains items from two of those domains: work and lifestyle. Therefore, the Short-WORC mainly focuses on the activity limitations that arise from rotator cuff disorders. Patients rate their function on a scale from 0, meaning no difficulty, to 10, meaning extreme difficulty. The percentage scores for the Short-WORC are obtained by subtracting the total score from 700, dividing by 700, and multiplying by 100, resulting in a total percentage score varying from 0 to 100. The Short-WORC questionnaire is considered incomplete if items are missing and cannot be used for the analysis. Validity, reliability and responsiveness: Dewan et al have tested the Short-WORC for internal consistency (a = 0.84 to 0.89) and