Background and purpose: Low self-efficacy is a major barrier that plays a significant role in non-adherence to self-care practices in patients with Chronic Heart Failure (CHF) and depression. This study was designed to determine the effectiveness of motivational interviewing on self-efficacy in CHF patients with depressed mood in two hospitals in Zahedan, south east of Iran, 2016.
Materials and methods: A randomized clinical trial was carried out in 82 patients suffering from heart failure, who were confined in hospital and whose depression was confirmed by Beck’s questionnaire and a mental status examination. They were randomly divided into intervention and control groups (n= 41 per group). The Self-Efficacy for Managing Chronic Disease was administered. The intervention group received four sessions of self-care behavior education (based on principles of motivational interviewing), and the control group received four routine sessions of self-care behavior education. Eight weeks after the intervention, the level of self-efficacy was evaluated in both groups.  Data was analyzed applying paired t-tests, independent t-tests, Chi-square test and analysis of covariance.
Results: The mean score for self-efficacy was significantly higher in intervention group (42.92 ±4.13), compared to that in the control group (37.21±5.16) (P= 0.0001).
Conclusion: Motivational interviewing had a significant positive effect on adherence to self-efficacy in patients with heart failure and depression. Therefore, using motivational interviewing is recommended in these patients.
 
)Clinical Trials Registry Number: IRCT2016092529954N2(