the psychometric properties of the hypertensive treatment adherence scale

Background: hypertension (htn) is a public concern and treatment adherence has a key role in its management. this study was conducted to develop and test the reliability and validity of the hypertensive treatment adherence scale (hta-scale). methods: this was a cross-sectional and methodological study. after item generation using a qualitative study and literature review, the scale was developed. the psychometric properties of the scale were evaluated using face, content, construct, and criterion validity and reliability. results: data analysis showed that the hta-scale had acceptable face and content validity. the scale had excellent stability [intraclass correlation coefficient (icc) = 0.74] and good acceptability and internal consistency (cronbach's α = 0.76). exploratory factor analysis (efa) showed that the hta-scale consisted of 6 meaningful subscales including medication adherence and monitoring, adherence to safe diets, avoiding unsafe diets, self-medication, activity, and smoking. participants in the controlled blood pressure group had significantly higher hta-scale scores than the uncontrolled blood pressure group. at the cut-off point of 86, the scale had significant sensitivity and specificity. conclusion: all of the psychometric properties of the hta-scale achieved the standard level and were sufficient to recommend this scale for patients with htn