Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectively
Background: Recently, a shorter version of the Western Ontario Rotator Cuff Index (Short-WORC) was created to reduce patient response burden. However, it has yet to be evaluated prospectively for reproducibility (reliability and agreement) and floor and ceiling effects. Methods: Patients (N = 162) w...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-03-01
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| Series: | JSES International |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468602619301615 |
| _version_ | 1818863465225256960 |
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| author | Rochelle Furtado, MSc Joy C. MacDermid, PT, PhD Dianne M. Bryant, PhD Kenneth J. Faber, MD, MPHE, FRCSC George S. Athwal, MD, FRCSC |
| author_facet | Rochelle Furtado, MSc Joy C. MacDermid, PT, PhD Dianne M. Bryant, PhD Kenneth J. Faber, MD, MPHE, FRCSC George S. Athwal, MD, FRCSC |
| author_sort | Rochelle Furtado, MSc |
| collection | DOAJ |
| description | Background: Recently, a shorter version of the Western Ontario Rotator Cuff Index (Short-WORC) was created to reduce patient response burden. However, it has yet to be evaluated prospectively for reproducibility (reliability and agreement) and floor and ceiling effects. Methods: Patients (N = 162) with rotator cuff disorders completed the Short-WORC at baseline. From this cohort, 47 patients underwent measurement of test-retest reliability within 2 to 7 days. We used the Cronbach α to determine internal consistency and the intraclass correlation coefficient (ICC2,1) to assess test-retest reliability. To evaluate parameters of agreement, the standard error of measurement, minimal detectable change (based on a 90% confidence interval), and Bland-Altman plots were used. Results: The Cronbach α was 0.82 at baseline, and the intraclass correlation coefficient (ICC2,1) was 0.87. The agreement parameter was 8.4 for the standard error of measurement of agreement, and the limits of agreement fell within the range of –22.9 to 23.8. The Short-WORC is reliable over time and reflective of a patient’s true score after an intervention. Conclusions: The Short-WORC demonstrated strong reproducibility parameters and can be used for patients with rotator cuff disorders. The Short-WORC indicated no systematic bias and was reflective of the true score of both individual patients and groups of patients at 2 time points. |
| first_indexed | 2024-12-19T10:16:11Z |
| format | Article |
| id | doaj.art-828fbb0d41ba4d5ca74948b47164ff21 |
| institution | Directory Open Access Journal |
| issn | 2666-6383 |
| language | English |
| last_indexed | 2024-12-19T10:16:11Z |
| publishDate | 2020-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | JSES International |
| spelling | doaj.art-828fbb0d41ba4d5ca74948b47164ff212022-12-21T20:26:13ZengElsevierJSES International2666-63832020-03-0141197201Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectivelyRochelle Furtado, MSc0Joy C. MacDermid, PT, PhD1Dianne M. Bryant, PhD2Kenneth J. Faber, MD, MPHE, FRCSC3George S. Athwal, MD, FRCSC4Department of Physiotherapy, School of Health and Rehabilitation Sciences, Western University, London, ON, Canada; Collaborative Program in Musculoskeletal Health Research, Bone and Joint Institute, Western University, London, ON, Canada; Corresponding author: Rochelle Furtado, MSc, Department of Physiotherapy, School of Health and Rehabilitation Sciences, Western University, 1201 Western Road, London, ON, Canada.Department of Physiotherapy, School of Health and Rehabilitation Sciences, Western University, London, ON, Canada; Collaborative Program in Musculoskeletal Health Research, Bone and Joint Institute, Western University, London, ON, Canada; Roth McFarlane Hand and Upper Limb Centre, St Joseph’s Hospital, London, ON, CanadaDepartment of Physiotherapy, School of Health and Rehabilitation Sciences, Western University, London, ON, Canada; Collaborative Program in Musculoskeletal Health Research, Bone and Joint Institute, Western University, London, ON, CanadaCollaborative Program in Musculoskeletal Health Research, Bone and Joint Institute, Western University, London, ON, Canada; Roth McFarlane Hand and Upper Limb Centre, St Joseph’s Hospital, London, ON, CanadaCollaborative Program in Musculoskeletal Health Research, Bone and Joint Institute, Western University, London, ON, Canada; Roth McFarlane Hand and Upper Limb Centre, St Joseph’s Hospital, London, ON, CanadaBackground: Recently, a shorter version of the Western Ontario Rotator Cuff Index (Short-WORC) was created to reduce patient response burden. However, it has yet to be evaluated prospectively for reproducibility (reliability and agreement) and floor and ceiling effects. Methods: Patients (N = 162) with rotator cuff disorders completed the Short-WORC at baseline. From this cohort, 47 patients underwent measurement of test-retest reliability within 2 to 7 days. We used the Cronbach α to determine internal consistency and the intraclass correlation coefficient (ICC2,1) to assess test-retest reliability. To evaluate parameters of agreement, the standard error of measurement, minimal detectable change (based on a 90% confidence interval), and Bland-Altman plots were used. Results: The Cronbach α was 0.82 at baseline, and the intraclass correlation coefficient (ICC2,1) was 0.87. The agreement parameter was 8.4 for the standard error of measurement of agreement, and the limits of agreement fell within the range of –22.9 to 23.8. The Short-WORC is reliable over time and reflective of a patient’s true score after an intervention. Conclusions: The Short-WORC demonstrated strong reproducibility parameters and can be used for patients with rotator cuff disorders. The Short-WORC indicated no systematic bias and was reflective of the true score of both individual patients and groups of patients at 2 time points.http://www.sciencedirect.com/science/article/pii/S2468602619301615Rotator cuff disordersreproducibilityagreementreliabilityshoulderspsychometrics |
| spellingShingle | Rochelle Furtado, MSc Joy C. MacDermid, PT, PhD Dianne M. Bryant, PhD Kenneth J. Faber, MD, MPHE, FRCSC George S. Athwal, MD, FRCSC Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectively JSES International Rotator cuff disorders reproducibility agreement reliability shoulders psychometrics |
| title | Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectively |
| title_full | Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectively |
| title_fullStr | Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectively |
| title_full_unstemmed | Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectively |
| title_short | Evaluating the reproducibility of the short version of the Western Ontario Rotator Cuff Index (Short-WORC) prospectively |
| title_sort | evaluating the reproducibility of the short version of the western ontario rotator cuff index short worc prospectively |
| topic | Rotator cuff disorders reproducibility agreement reliability shoulders psychometrics |
| url | http://www.sciencedirect.com/science/article/pii/S2468602619301615 |
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