Background: Pay attention to the psychological aspects of diabetic patients is important and can be very useful in the process of treatment of them. Training is essential in these patients Peer education in facilitating and improving health and Create a Learning Atmosphere has many effects. This study was conducted to evaluate the effect of peer education on diabetes quality of life.

Methods: In this randomized control trial study, 70 diabetic patients who were in Firoozgar hospital in Tehran were recruited using the convenience sampling method. The patients were assigned randomly into two control and intervention groups. Patients in the intervention group were trained by peers during the two sessions, but the patients in the control group received only routine education. Data were collected by demographic and diabetes quality of life questionnaire. Patient’s qualities of life were measured before the education and 2 months after the intervention. Descriptive and inferential statistics were used to analyze data by SPSS.

Results: Mean diabetes quality of life in both groups had no statistically significant before peer education (P:0.3). Mean of quality of life score in diabetic patients in intervention group was significantly different from control group at two months after the intervention. (P<0.001).

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Conclusion: Conclusion: According to the results of this study, it seems that peer education in diabetic patients is effective to increase quality of life in these patients. So it is recommended to educate patients by using this approach.