The responsiveness and validity of the Rotator Cuff Quality of Life (RC-QOL) index in a 2-year follow-up study.
| Autor: | Richards CD; Lecturer, Department of Health & Physical Education, Faculty of Health, Community, and Education, Mount Royal University, Calgary, AB, Canada., Eubank BHF; Assistant Professor, Department of Health & Physical Education, Faculty of Health, Community, and Education, Mount Royal University, Calgary, AB, Canada., Lafave MR; Professor & Athletic Therapy Program Coordinator, Department of Health and Physical Education, Faculty of Health, Community, and Education, Mount Royal University, Calgary, AB, Canada., Wiley JP; Professor, Sport Medicine Centre, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada., Bois AJ; Clinical Assistant Professor, Division of Shoulder and Elbow Surgery, Section of Orthopaedic Surgery, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada., Mohtadi NG; Clinical Professor, Department of Surgery, Cumming School of Medicine, Medical Director, Sport Medicine Centre, Faculty of Kinesiology, McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada. |
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| Jazyk: | angličtina |
| Zdroj: | JSES international [JSES Int] 2022 May 16; Vol. 6 (4), pp. 604-614. Date of Electronic Publication: 2022 May 16 (Print Publication: 2022). |
| DOI: | 10.1016/j.jseint.2022.04.012 |
| Abstrakt: | Background: The Rotator Cuff Quality of Life (RC-QOL) index was developed to evaluate quality of life in patients with rotator cuff disease. This study provides additional psychometric testing in accordance with the Consensus-Based Standards for the Selection of Health Measurement Instruments guidelines. Methods: This was a 2-year follow-up study on 66 patients (mean age, 59 ± 10 years) originally presenting with chronic full-thickness rotator cuff tears to a tertiary care center. The methodology involved testing internal consistency, content validity, and criterion validity. Responsiveness was evaluated using 3 strategies: 1) standardized response mean of the raw change scores; 2) Guyatt's Responsiveness Index; and 3) Global Rating Scales of improvement correlated to a quality of life measure. Results: Content validity was confirmed with a Cronbach α of 0.92 (95% confidence interval, 0.92-0.95) and absence of floor and ceiling effects. Criterion validity was confirmed using the Western Ontario Rotator Cuff Index as a reference standard ( r = 0.87, P < .001). The effect size of distribution-based methods of determining responsiveness was large (0.99-1.09) compared to that of mixed- and anchor-based methods (0.47-0.89). All responsiveness calculations met minimum requirements for acceptable thresholds. Conclusion: The RC-QOL is a valid and responsive measure of health-related quality of life in patients with chronic rotator cuff pathology. The results of this study added to the methodologic quality assessment of the RC-QOL, completing 7 of 10 Consensus-Based Standards for the Selection of Health Measurement Instruments criteria. (© 2022 The Author(s).) |
| Databáze: | MEDLINE |
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