Key result
Persian post-coronary event knowledge scale shows strong psychometric reliability of ~0.85 in CHD patients.
Why the study?
Post-coronary event self-care depends on understanding risk factors and adopting healthy behaviors, requiring an appropriate scale to measure patient knowledge and guide educational interventions.
Does the Persian translation of the Scale of Knowledge of Cardiovascular Risk Factors and Lifestyle after Coronary Event demonstrate valid and reliable psychometric properties in Iranian patients with coronary heart disease?
Cross-Sectional (n=300)
Yes
Does the Persian translation of the Scale of Knowledge of Cardiovascular Risk Factors and Lifestyle after Coronary Event demonstrate valid and reliable psychometric properties in Iranian patients with coronary heart disease?
The Persian translation of the Scale of Knowledge of Cardiovascular Risk Factors and Lifestyle after Coronary Event is a valid and reliable tool for assessing patient knowledge in Iranian populations.
Answers are grounded in this paper and cite their sources.
Supports knowledge assessment in Iranian CHD patients; extends original scale validation to Persian speakers.
BACKGROUND: Coronary heart disease (CHD) is a leading cause of morbidity and mortality worldwide. The level of self-care after coronary events is closely linked to understanding cardiovascular risk factors and adopting healthier lifestyle behaviors. An appropriate scale can help healthcare providers measure patients' understanding of cardiovascular risk factors and provide educational interventions. This study aimed to translate and conduct a psychometric evaluation of the scale of knowledge of cardiovascular risk factors and lifestyle after coronary events. METHODS: A standardized guideline was followed for translating and culturally adapting the English version of the Scale of Knowledge of Cardiovascular Risk Factors and Lifestyle after Coronary Events. The study included 300 patients with CHD aged 23 to 90. Exploratory factor analysis (EFA) was used to analyze construct validity. Internal consistency was estimated with Cronbach's alpha (0.98), and the intra-class correlation coefficient (ICC) was used to assess scale stability (0.84). RESULTS: A total of 300 patients with an average age of 56.6 ± 12.7 were evaluated. Exploratory factor analysis confirmed construct validity, resulting in a 4-factor model comprising knowledge of cardiovascular risks (7 items), knowledge of lifestyle recommendations (6 items), knowledge of cholesterol and blood pressure control (5 items), and knowledge of diabetes (3 items). Together, these factors explained 67.34% of the total variance. The Cronbach's alpha for internal consistency of the scale was 0.851. Additionally, scale stability, as measured by the test-retest method, was 0.84, which is acceptable according to the minimum value of 0.70. CONCLUSION: The translated Scale of Knowledge of Cardiovascular Risk Factors and Lifestyle after Coronary Events demonstrated strong psychometric properties among patients with CHD. The scale is both reliable and valid, providing healthcare providers with a practical tool to evaluate patient understanding and guide educational efforts aimed at enhancing post-coronary event self-care. CLINICAL TRIAL NUMBER: Not applicable.
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Izadi-Avanji et al. (2025) conducted a cross-sectional in Coronary heart disease (n=300). Scale of Knowledge of Cardiovascular Risk Factors and Lifestyle after Coronary Event (Persian translation) was evaluated on Construct validity and internal consistency. The translated Persian version of the Scale of Knowledge of Cardiovascular Risk Factors and Lifestyle after Coronary Event demonstrated strong psychometric properties, with a Cronbach's alpha of 0.851 and test-retest reliability of 0.84, among patients with coronary heart disease.
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