Coronary Artery Disease Empowerment Scale (CADES): Persian translation and psychometric properties

Coronary artery disease (CAD) is a leading cause of global mortality and a prevalent health issue in Iran. Assessing the empowerment of CAD patients during treatment and care is essential. However, no scale is available to measure empowerment in CAD patients in Iran. Therefore, this study aimed to evaluate the validity and reliability of the Persian version of the "Coronary Artery Disease Empowerment Scale" (CADES).

This methodological and cross-sectional study was conducted on patients with CAD from June 2022 to April 2023 in Kermanshah City, Iran. The scale was translated using the forward-backward translation method. Construct validity was examined using Exploratory Factor Analysis (EFA) with 190 samples and Confirmatory Factor Analysis (CFA) with 344 samples, both selected through convenience sampling. Internal consistency was assessed using Cronbach's alpha coefficient, and reliability was evaluated using the test-retest method. SPSS version 27 and LISREL version 8 software were utilized for data analysis.

The EFA and CFA results confirmed the instrument with three factors and 25 items. The model's main indicators in factor analysis were all above 0.9, indicating a good fit for the model. The Pearson correlation coefficient between the items and subscales with the main scale showed a direct and significant relationship. Additionally, Cronbach's alpha coefficient (0.813) and test-retest reliability (0.763) confirmed the reliability of the Persian version of the CADES.

The study's results suggest that the Persian version of CADES is both practical and acceptable for evaluating the empowerment of CAD patients. This tool can be relied upon as a valid and reliable method for assessing these patients' empowerment.