Psychometric Properties and Factorial Structure of Vietnamese Version of the Hypertension Self-care Profile Behavior Scale

Abstract

Background The Hypertension Self-care Profile Behavior (HTN-SCPB) scale is a self-report instrument with which a patient's self-care behavior can be assessed. However, its psychometric properties for adult patients with hypertension in Vietnam require clarification. Objective The aim of this study was to translate the HTN-SCPB scale into Vietnamese and to assess its psychometric properties. Methods The study included 220 adult patients with hypertension. To evaluate test-retest reliability, 133 participants were tested twice with a 3-week interval between tests. For construct validity, exploratory factor analysis was used to assess factor structure, and confirmatory factor analysis was used to evaluate the structural model fit of the scale. Results Reliability was confirmed by internal consistency (Cronbach α = 0.79) and test-retest reliability (intraclass correlation coefficient, 0.88). The Kaiser-Meyer-Olkin value was 0.75, and Bartlett's test of sphericity was significant (P