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Background: Hypertension is an important health problem that can be controlled by self-care. Objectives: The present study aimed to determine the impact of an educational program based (BASNEF) model on knowledge and self-care behaviors for hypertensive patients in Bastak, Iran. Methods: This quasi-experimental study was performed on 180 patients with hypertension who were admitted to health centers of the Bastak city. The participants were randomly assigned to intervention (n = 90) and control (n = 90) groups. Data were collected using a questionnaire that had three sections of demographic information, knowledge, and BASNEF constructs. The questionnaires were completed before the intervention and two months after providing the intervention. After the pre-test, an appropriate educational intervention was designed and implemented only among the intervention group. To analyze the data, paired t-test, independent t-test, and Chi-square tests were run by SPSS version 19. Results: The mean age of the participants was 50.62 ± 7.549 years. The results showed a statistically significant difference in the mean scores of attitudes, subjective norms, enabling factors, and self-care behaviors in the intervention group pre- and post-intervention (P = 0.001). Besides, it was found that enabling factors (0.311) play a significant role in predicting self-care behaviors. Conclusions: The results of this study support the effectiveness of educational interventions in raising awareness and improving self-care behaviors in patients with hypertension using the BASNEF model. Therefore, with an emphasis on enabling factors, the BASNEF model can be used as a framework to develop educational interventions for self-care.

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