Self-Efficacy in Self-Care and Its Related Factors Among Patients with Coronary Heart Disease in Indonesia: A Rasch Analysis.

Background: Low self-efficacy (SE) can impact decreasing health status, poor self-care, and quality of life among patients with Coronary Heart Disease (CHD). Many factors can affect SE. However, studies on SE in CHD patients with Rasch Model analysis have not been carried out widely.

Purpose: This study aims to identify the SE in self-care and its related factors that correlate SE among CHD patients.

Patients and methods: Cross-sectional study was conducted on 104 adult patients (≥18 years) diagnosed with CHD. Selection of the sample using convenience sampling technique with several predetermined criteria. SE was measured using the SEQ-CHDM questionnaire, with high validity and reliability results. Data were analyzed using the Rasch model and chi-square test.

Results: The results showed that most respondents had a moderate SE (51.5%). Care units (p=0.003) and duration of illness (p=0.049) were significantly correlated to SE among patients with CHD. "Maintaining an ideal body weight" is the most challenging thing. On the other hand, stop smoking is the most confident thing to be performed by the respondents.

Conclusion: We conclude that CHD patients in the acute care unit and patients with a duration of illness >6 months have a lower tendency for SE. Health interventions such as raising awareness about the disease, modifying health behavior, and immediately screening can improve patients' SE. Besides that, proper diagnosis and ongoing treatment are crucial to improving SE and CHD care outcomes.