Reliability and validity of the Turkish version of king's Parkinson's disease pain scale

Abstract

Objective: Pain, a nonmotor symptom in Parkinson's disease (PD), affects approximately 40%–85% of patients and adversely affects their daily activities. Therefore, our aim was to establish the validity and reliability of the Turkish version of King's PD Pain Scale (KPDPS) and to make it available for Turkish patients with PD patients. Methods: The first phase of the study involved the translation and adaptation of the KPDPS to Turkish. For the language validity of the scale, a translation back-translation method was applied, and expert's opinion was considered for content validity. In the second stage, the developed Turkish scale was administered to 152 patients with PD. In the study, test-retest was performed in 50 patients for 1 week. Results: The internal consistency value was found as 0.856 in the KPDPS. When the test-retest was performed, the internal consistency value of the scale showed excellent reliability. The test-retest-Cronbach's alpha value for the whole scale was 0.827. According to the data analysis results, it showed that 14 items on the scale were sufficient for the evaluation of pain in patients with PD. Conclusion: The results from this study show that KPDPS items have adequate internal consistency and test-retest reliability. The Turkish KPDPS can be used as a reliable and valid instrument for assessing the pain symptoms common to patients with PD.

Keywords

• pain assessment
• pain scale
• parkinson's disease
• reliability
• validation study