Abstract
BACKGROUND: Increasing evidence suggests that self-management practices can enhance the results for individuals with chronic kidney disease (CKD). Nevertheless, there are currently no tools in Iran to adequately evaluate self-management in CKD patients. This study aimed to validate and psychometrically evaluate the Persian Chronic Kidney Disease Self-Management for Iranian healthcare professionals and patients. METHODS: In this cross-sectional study, after the scale translation, the adaptation and validation were assessed in a sample of 400 patients with CKD who were receiving treatment at nephrology wards and clinic centers affiliated with Ahvaz Jundishapur University of Medical Sciences in Iran. Face and content validity were evaluated using both quantitative and qualitative methods. Construct validity was established through exploratory and confirmatory factor analysis. The reliability of the instrument was assessed through measures of internal consistency, as well as relative and absolute reliability. RESULTS: Following the completion of construct validity and factor analysis, a 15-item instrument with three key factors was identified: self-efficacy, ability to acquire knowledge and problem-solve, and knowledge. These factors accounted for a total variance of 44.18%. The results of the confirmatory factor analysis indicated a strong fit for the model. Each factor demonstrated acceptable internal reliability, with Cronbach's α values ranging from 0.73 to 0.83. Furthermore, the scales exhibited strong stability, as evidenced by an overall Intraclass Correlation Coefficient result of 0.961. The absolute reliability, as determined by Standard Error of Measurement results, was 3.16. Additionally, the Minimum Detectable Change was estimated to be 8.75. CONCLUSIONS: The findings of this study demonstrate that the CKD-SM Instrument is both valid and reliable for use in tailoring interventions for Iranian patients with CKD. Additionally, the concept being studied has three subconcepts that show sufficient reliability and applicability within the Iranian population.