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Patient reported adherence to hypertension treatment: A revalidation study
Wei He1, Ann Bonner2, Debra Anderson2
1School of Nursing, Queensland University of Technology, Brisbane, Australia School of Nursing, Nantong University, Nantong City, People's Republic of China zhangsteven@163.com.
European Journal of Cardiovascular Nursing
|August 27, 2015
Summary
This study validated the Therapeutic Adherence Scale for Hypertensive Patients (TASHP) in China. A score of 109 or higher on the TASHP indicates satisfactory adherence to hypertension management.
Area of Science:
- Cardiovascular Health
- Psychometrics
- Health Services Research
Background:
- Patient adherence to hypertension management is crucial for blood pressure control.
- Accurate measurement of adherence behaviors is essential for developing effective interventions.
- This study addresses the need for a validated tool to assess adherence in hypertensive patients.
Purpose of the Study:
- To revalidate the Therapeutic Adherence Scale for Hypertensive Patients (TASHP) using confirmatory factor analysis.
- To establish a cut-off score for the TASHP to differentiate between satisfactory and low adherence behaviors.
- To provide a reliable instrument for assessing adherence in hypertensive populations.
Main Methods:
- Confirmatory factor analysis was employed to validate the TASHP.
- Systematic random sampling recruited 366 hypertensive patients in China.
- Psychometric properties including validity and reliability were assessed. The receiver operating characteristic curve and Youden index determined the cut-off score.
Main Results:
- Confirmatory factor analysis confirmed the four-component structure of the TASHP.
- The TASHP demonstrated satisfactory internal reliability (Cronbach's α > 0.7) and split-half reliability (Spearman-Brown > 0.7).
- A TASHP score of 109 or higher was identified as the cut-off for satisfactory adherence.
Conclusions:
- The TASHP is a validated and reliable scale for measuring adherence to hypertension management in Chinese patients.
- The established cut-off score of 109 effectively classifies adherence levels into satisfactory and low categories.
- This validated scale and cut-off score can aid in targeted interventions for improved blood pressure control.
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