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Validity and reliability of the Greek version of the American Shoulder and Elbow Surgeons Standardized Shoulder
Konstantinos E Tolis1, Antonis A Galanos1, Emmanouil M Fandridis2
1Laboratory for the Research of Musculoskeletal System (LRMS), School of Medicine, National & Kapodistrian University of Athens, KAT General Hospital, Athens, Greece.
Background:
The aim of our study is to prove the validity and reliability of the Greek translated version of the self-report section of the American Shoulder and Elbow Surgeons (ASES) questionnaire.
Methods:
A total of 108 patients with various shoulder disorders were evaluated at two different orthopedic centers. All patients answered the Greek ASES questionnaire as well as the previously validated Greek version of the Disability Arm Shoulder and Hand score. Three days after the first evaluation, a subgroup of 40 individuals was randomly selected to complete again the Greek ASES text to prove its reliability, after the test-retest procedure. Reliability was tested with Cronbach's alpha, stability by calculating the intraclass correlation coefficient and by Blant Altman plot and structural validity with the confirmatory factor analysis.
Results:
The internal consistency of the ASES functional score and the ASES total score was 0.925 and 0.750 respectively. The intraclass correlation coefficient between initial assessment and reassessment of the ASES functional and total score was 0.951 and 0.938 (P < .001), respectively. The correlation coefficients correlation between the ASES functional and total scores with DASH total score were -0.881 and -0.759 (P < .001), respectively.
Conclusions:
The Greek ASES version proved to be equivalent to the English original version in evaluating different shoulder disorders in the Greek population.
