• Mustafa Ozsahin, Kenan Akgun, Ilknur Aktas, and Yesim Kurtais.
• Department of Physical Medicine and Rehabilitation, Istanbul University, Cerrahpasa Medical Faculty, Istanbul, Turkey.
• Int J Rehabil Res. 2008 Sep 1; 31 (3): 241-5.

AbstractThe objective of this study was to adapt the Shoulder Disability Questionnaire (SDQ) for use in Turkey, and to test its reliability and validity. Eighty patients with shoulder pain were included in the study. Pain severity at rest, with motion and during sleeping was assessed by using a numeric pain scale. The shoulder's active and passive range of motion were measured by a goniometer and recorded. The Constant-Murley scale was used for functional assessment. The Turkish version of the SDQ, which was adapted by using guidelines, was completed by the patients. To assess reproducibility, the SDQ was completed by 32 patients who did not improve 1 week later. The reliability of the adapted version was good, with high internal consistency (Cronbach's alpha=0.76) and test-retest reliability (Pearson's correlation coefficient=0.88). The Turkish version of the SDQ was found to have a moderate correlation with pain at rest, with motion and during sleeping. The Turkish version of the SDQ was found to be reliable and valid. The moderate correlation of the questionnaire with clinical parameters including pain shows its validity, but the questionnaire should be tested extensively for detecting changes within time, for use in the follow-up and clinical practice.

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