Psychometric properties of Persian version of Hypertension Self-Care Profile in patients with high blood pressure

Abstract

Introduction: Self-care, behavior changes and health maintenance are the essential factors to prevent the exacerbation of cardiovascular disease. Having a valid and reliable tool is essential to evaluate self-care status of patients with hypertension. Relatively, the present study aimed to evaluate the psychometric properties of the Persian version of the Hypertension Self-Care Profile (HTN-SCP) in patients with high blood pressure. Materials and Methods: In this methodological research, using multi-stage cluster sampling, 325 patients with high blood pressure were selected to complete the Persian version of the hypertension self-care profile. The questionnaire was translated according to WHO guidelines. Face, content and construct validity (by exploratory and confirmatory factor analysis) was investigated. Reliability was measured using the McDonald;#39s Omega and Cronbach;#39s alpha coefficients. Results: Four factors, including diet and activity regimen, medication regimen, food labels and disease management were extracted based on exploratory factor analyses. They were able to explain 51.39% of the variance of all self-care variables. The fitness of the four-factor model of self-care construct was approved based on standard indices (NFI=0. 92, CFI=0. 96, PNFI=0. 80, RMSEA=0. 067). Reliability of HTN-SCP was 0.865 based on the Cronbach’s alpha coefficient. Conclusion: The four-factor structure of HTN-SCP suitable validity and reliability. Conclusively, given to its proper psychometric properties, this questionnaire can be used in patients with hypertension in future researches in Iran.