Factors Associated with Antiplatelet Medication Nonadherence among Patients Undergoing Percutaneous Coronary Intervention in Vietnam

Nonadherence to medication among patients with cardiovascular disease is a major problem in Vietnam. Publications around the world reveal that factors such as education level, social support, psychological factors, socioeconomics, poor relationship with health care providers, medication beliefs, adverse effects, and lack of health insurance determine medication adherence. Objectives: To determine the incidence of antiplatelet medication nonadherence and its associated factors among patients who undergoing Percutaneous Coronary Intervention (PCI) in Vietnam. Methodology: A descriptive cross-sectional study was conducted among a total of 123 PCI patients. Questionnaires were administered to the participants to collect demographic data and the health-related data, Morisky Medication Adherence Scales, beliefs about medication, and knowledge about medication. Data were analyzed and logistic regression was applied to determine factors associated with antiplatelet medication nonadherence. Results: Approximately, 50.9 percent of the participants had poor knowledge about their antiplatelet medication. The mean antiplatelet adherence score was 4.29 ± 2.53, which indicated poor adherence (MMAS-8<6 scores) Factors including low education level, income, duration of treatment, hypertension, peptic ulcer, beliefs about medication, and knowledge about medication were associated with antiplatelet nonadherence. Conclusions: In conclusion, medication adherence to antiplatelet among people who undergoing PCI in Vietnam was low. Therefore, intervention to promote antiplatelet