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The psychometric properties of the Hypertensive Treatment Adherence Scale

Document Type : Original Article(s)

Authors

1 Assistant Professor, Nursing Research Center, School of Nursing and Midwifery, Kerman University of Medical Sciences, Kerman, Iran

2 Professor, Nursing and Midwifery Care Research Center, School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran

3 Associate Professor, Nursing Research Center, School of Nursing and Midwifery, Kerman University of Medical Sciences, Kerman, Iran

Abstract

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 a = 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. 

Keywords

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ARYA Atherosclerosis Journal
Volume 16, Issue 2 - Serial Number 2
March and April 2020
Pages 55-71
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