Factors affecting self-reported medication adherence and hypertension knowledge: A cross-sectional study in rural villages, Yogyakarta Province, Indonesia.

Objectives This study assessed medication adherence and hypertension knowledge, and their predictive factors, in people with hypertension, living in rural communities in Indonesia. Methods Data were acquired from 384 people living in eight rural villages via a researcher-administered questionnaire, a validated adherence scale, and a standardized hypertension knowledge survey. Multivariate analysis was used to identify the predictors of adherence and knowledge. Results Fifty-nine (15%) participants had good hypertension knowledge (score ≥ 8 out of 10). Compared to participants with poor knowledge, these participants had higher formal education (odds ratio = 2.7, 95% confidence interval = 1.5-4.7), and lived closer to a community health center (odds ratio = 1.8, 95% confidence interval = 1.0-3.3). Knowledge gaps about the need for long-term medication, hypertension complications, and the target blood pressure were identified. Good hypertension knowledge predicted good adherence to medication (odds ratio = 7.1, 95% confidence interval = 3.3-15.2). Only 42 (11%) participants were considered to have good adherence. Reasons for intentional nonadherence were beliefs that medicines should be taken only when symptoms are evident, limited access to healthcare services, and a preference using traditional medicines. Conclusion Strategies for addressing knowledge gaps and misconceptions about hypertension medication are needed, particularly for people with a low educational level and those living some distances from healthcare facilities.