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Abstract
Aim.This study aimed to determine the relationship between lifestyle and cardiac self efficacy among people with heart failure.
Background. As a common disease, heart failure is a major cause of death and disability in the world. In the treatment of heart failure patients, there is a special emphasis on lifestyle modification. In order to improve the lifestyle of patients with heart failure, cognitive-behavioural factors such as cardiac self-efficacy can be considered.
Method. This descriptive correlational study was conducted on 227 patients with heart failure referred to cardiology clinics of hospitals affiliated to Isfahan University of Medical Sciences. The data gathering tool  consisted of three sections: demographic form, Sullivan's cardiac self efficacy questionnaire and health-promoting lifestyle profile. The data were analysed in SPSS, version 16.
Findings.The mean score of cardiac self-efficacy was 58.45±25.92 and the mean score of total lifestyle was reported 54.45±16.27. A statistically significant direct relationship was found between the mean score of total lifestyle and the mean score of cardiac self-efficacy (r=0.463, p≤0.0001). The Pearson correlation coefficients showed a direct correlation between the scores of all dimensions of lifestyle and score of cardiac self-efficacy (In all cases, p≤0.0001).
Conclusion: There is a positive and significant correlation between lifestyle and cardiac self efficacy of patients with heart failure.