Effects of health belief model in promoting self-care behaviors among hypertensive older adults.

Abstract

Aging has the fastest growth rate in age groups. With age, the prevalence of a variety of chronic diseases also increases. Among chronic diseases, hypertension is one of the most important diseases among older adults and self-care is one of the effective approaches to control it. The aim of the present study was to apply the health belief model (HBM) in promoting self-care in hypertensive older adults to help improve self-care behaviors in this age group. This was a quasi-experimental study. This study was conducted at comprehensive health centers in the east of Guilan province, Iran. This intervention study was conducted on 106 elderly people with hypertension who were selected with a multi-stage random sampling method from those referred to east health centers of Gilan, Iran, in 2019. The data gathering tool was a questionnaire including demographic characteristics, HBM structure, hypertension knowledge, and hypertension self-care questionnaires. The intervention group received an educational program based on the HBM model. The questionnaire was completed by the elderly before and 2 months after the intervention. The data were analyzed by descriptive statistics, Mann-Whitney, Chi-square, Wilcoxon, Fisher, and ANCOVA tests usingSPSS ver.16. There was a significant difference in knowledge and all HBM constructs before and after the intervention in the intervention group (P < 0.001). In the control group, knowledge (P-value = 0.023), self-efficacy (P-value = 0.001), perceived severity (P-value = 0.005), and cues to action (P-value = 0.008) were significantly different (P < 0.05) after the intervention. The present study showed that HBM-based education can be considered an effective educational framework for improving self-care of the hypertensive older adults.