Association between Knowledge and Self-care Adherence among Elderly Hypertensive Patient in Dwelling Community

BACKGROUND: Hypertension contributes significantly to the increase in cardiovascular disease cases, especially in the elderly. Knowledge and self-care compliance are needed, but in reality, awareness and regularity of control are still lacking in hypertensive patients in urban communities. AIM: The aim of the study was to determine the relationship of knowledge with self-care and get an overview of existing knowledge and self-care in the elderly with hypertension. METHODS: This is a quantitative and cross-sectional design recruited 383 hypertensive patients in three community health centers. Sampling with proportional random sampling from three health centers that have the highest cases of hypertension in the city of Padang. Knowledge instrument using hypertension knowledge-level scale. Moreover, hypertension self-care adherence using hypertension self-care activity level effects. Analysis using Chi-square test RESULTS: The sample of this study was 383 respondents. About 66.3% are women, 88.3% have low education, and 86.9% do not work. 51.2% had duration of hypertension 0–5 years and the average age was 60.89 ± 8.072 years. About 94.8% of respondents have poor knowledge. Self-care practice showed 64% non-adherence to medication, 88.5% non-adherence to the DASH diet, and 82.5% non-adherence to weight management. However, 78.6% indicated non-smoking adherence and 100% alcohol avoidance adherence. There was a relationship between knowledge and adherence to weight management (p=0.000; odds ratio OR 6.7 (95% confidence interval CI for Exp B; 2.65–16.91)) and physical activity (p=0.000; OR 14.99 (95% CI for Exp B; 5.65–39.79)). CONCLUSION: Providing comprehensive and repeated health education for the elderly with hypertension can increase their knowledge. The involvement of patients and families is needed to improve self-care behavior.