Validation of the Danish version of Oxford shoulder score

Lars Henrik Frich, Peter Moensted Noergaard, Stig Brorson

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    Abstrakt

    INTRODUCTION: The Oxford Shoulder Score (OSS) is a patient- administered condition-specific questionnaire for patients with degenerative or inflammatory shoulder disease. The purpose of this study was to validate a Danish translation of the OSS and to compare it with the Constant Score (CS). MATERIAL AND METHODS: A total of 102 consecutive patients referred to our shoulder unit were recruited for the study. The OSS was translated into Danish according to recommendations presented by Guillemin and co-workers. We established the psychometric properties of the scoring system. Test-retest reliability was assessed by inviting 32 patients to complete another OSS 72 hours after the first test. The Bland-Altman plot was used to show absolute differences between test and retest. RESULTS: The validity expressed as a Spearman's rank correlation coefficient comparing the OSS with the CS was 0.74. The test-retest reliability correlation coefficient was 0.98. Bland-Altman plots revealed limits of agreement between the scores of -4.5 - -5.4. Internal consistency tested by Cronbach's alpha was 0.93. CONCLUSION: The psychometric properties of the Danish version of OSS showed good validity and reliability with a substantial correlation between the OSS and the CS. Internal consistency was high. The OSS is recommended for the evaluation of patients with degenerative or posttraumatic shoulder diseases.

    OriginalsprogEngelsk
    TidsskriftDanish medical bulletin
    Vol/bind58
    Udgave nummer11
    StatusUdgivet - 1 nov. 2011

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