Cross-cultural adaptation and validity of the Chinese version of the Oxford elbow score
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(2020) 15:562
RESEARCH ARTICLE
Open Access
Cross-cultural adaptation and validity of the Chinese version of the Oxford elbow score James Reeves Mbori Ngwayi1*, Jie Tan1, Ning Liang1, Emmanuel Gildas Eric Sita2 and Daniel Edward Porter3
Abstract Background: The Oxford Elbow score (OES) is a patient-reported outcome measure designed to evaluate patients before and after elbow surgery. Although various translated versions of the score are available, there is no Chinese mandarin version. The aim of this study was to develop a Chinese language version of the OES and evaluate its psychometric properties for clinical use. Methods: The English version of the OES was forward translated into Chinese, followed by a backward translation into English. Then a final Chinese version was produced following expert committee discussions and pilot study of 11 patients. A smart device compatible electronic version of the OES was designed and completed by 70 patients with elbow pathology alongside the Quick-Dash and the SF-36. Reliability was assessed by measuring intraclass correlation coefficient (ICC) for test-retest reliability and Cronbach’s alpha for internal consistency. Spearman’s correlation coefficient was used to test the construct validity. Confirmatory factor analysis (CFA) was performed to evaluate the 3-factor structure of the OES. Results: The overall Cronbach’s α coefficient was 0.906 and for the 3 different domains Function, Pain, and Socialpsychological was 0.806, 0.796, and 0.776 respectively. The overall intraclass correlation coefficient was 0.764 and for the three different domains Function, Pain, and Social-psychological was 0.764, 0.624, and 0.590 respectively. The Spearman’s coefficient for correlation, between the QuickDASH and OES domains Function, Pain, and Socialpsychological, was − 0.824, − 0.734, and − 0.622 respectively, showing strong correlation (r > 0.5; p < 0.01). There were moderate correlations between OES domains and the physical functioning, role physical, and strong correlations with bodily pain subscales of the PCS domain of the SF-36; results were insignificant for all other subscales. Conclusion: Our translated Chinese mandarin OES version (mainland) was reliable and valid, suitable for evaluating elbow disorders in the Chinese population. Reliability was measured using both the Cronbach’s α for internal consistency and the intraclass correlation. Results were classified as “excellent” and were similar to results from the original OES. Electronic PROMs were used instead of the traditional paper-based PROMs for collection of data which was well tolerated by patients. Keywords: Oxford elbow score, QuickDASH, SF-36, Elbow disorder, Reliability, Validity
* Correspondence: [email protected] 1 School of Clinical Medicine, Tsinghua University, Beijing 100084, China Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation,
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