Effect of a PRECEDE-based educational intervention on depression and quality of life in patients with coronary artery bypass grafting

To examine effect of an educational intervention on depression and quality of life in patients with coronary artery bypass grafting surgery. This was a quasi-experimental study of 54 patients after bypass surgery in the Isfahan Cardiovascular Research Center. The patients randomly assigned to intervention and control groups. Primarily Cardiac Depression Scale was used to measure depression. In addition, a PRCEDE-based educational questionnaire and the end SF-36 questionnaire were used. The intervention group received a PRCEDE Model educational package up four months. After education the mean score of Predisposing factors, Enabling factors, Reinforcing factors and self-helping behaviors increased significantly in the intervention group as compared to the control group (P<0.001). The mean score of depression in control group (M=104/5, SD=30/4) and intervention group (M=112/8, SD=21/9) decreased significantly, but this effect was more pronounced in intervention group (M=66/2, SD=22 vs M=89/2, SD=27/8). Also the significant differences in quality of life between two groups were seen in physical functioning (P<0.04), role emotional (P<0.01) and mental component summary (P<0.04). The findings of this study indicated that the PRCEDE Model was effective educational intervention in reducing depression and enhancing quality of life in patients with coronary artery bypass surgery.