Psychometric Properties of the Turkish Version of the JHand for the Patient-Oriented Outcome Measure for Patients with Hand and Elbow Disorders.

The JHand is an easy-to-understand questionnaire that includes questions that exclude hand dominance. It was developed to evaluate patients with hand and elbow disorders. However, JHand has not been translated and validated in the Turkish language. The aim of this study is to investigate the psychometric properties of the culturally adapted Turkish version of the JHand for Turkish patients. A total of 262 patients were included in the study. JHand, Disabilities of the Arm, Shoulder, and Hand Questionnaire, and Hand20 were used to evaluate patients. Internal consistency and test-retest analyses were applied to determine the reliability of the Turkish version of the JHand. Confirmatory factor analysis and similar scale validity were used to determine its validity. The Turkish version of the JHand showed high levels of internal consistency and excellent test-retest reliability (Cronbach α = 0.907, ICC = 0.923). The model fit indices of the Turkish version of the JHand had good and acceptable fit with reference values. Statistically positive and very strong correlations were found between JHand and DASH (r = .825, p < .001) as well as the JHand and Hand20 (r = .846, p < .001). The Turkish version of the JHand had excellent internal consistency and test-retest reliability as well as a high level of validity.