Validation of the Persian version of self-care tools for hypertension among older adults

摘要

Aim To validate two sub-scales of self-care behaviour and self-efficacyof hypertension in elderly patients in Iran using an Englishscale developed by Dr. Han et al.Methods The Persian version of two sub-scales of self-care behaviorand self-efficacy was validated for 300 elderly people whosuffered from hypertension. These sub-scales were translated intoPersian according to the Wild et al. model. The validity of the toolwas confirmed through formal, content and structural validity andreliability through calculation of internal consistency and time stability.Results Cronbach’s alpha was reported to 0.85 for behavior, 0.86for self-efficacy. Pearson’s correlation coefficient for behavior was0.89, for self-efficacy 0.92. Intraclass correlation coefficient (ICC)was 0.84 for behavior and 0.88 for self-efficacy. The minimumacceptable content validity ratio (CVR) for each grade was equalto 49.0 and for the content validity index (CVI) equal to 0.79,indicating that all items obtained the grade points. In exploratoryanalysis, two dimensions of diet and disease management weredetermined for both sub-scales, which were approved accordingto fit indicators.Conclusion The Persian version of the Self-Care Tools for hypertensionshowed favourable validity and reliability, and thus it canbe used for measuring the level of self-care for hypertension inIranian elderly population.