en تخصصي Special پژوهشي Research <div style="text-align: justify;"><strong>Background:</strong> Although compliance with all self-care behaviors is necessary for successful management of diabetes, patients with diabetes often refuse favorable self-care. This article is aimed to test the effects of a theory-related intervention to conduce self-aid adherence and metabolic curb in patients having type-2 diabetes.&nbsp;<br> <strong>Methods: </strong>In this randomized controlled trial, 80 patients suffering from type-2 diabetes were arbitrarily allotted to intervention and control group. The intervention group attended six sessions in a batch and one-on-one consultation and received an education on self-efficacy and outcome expectations on improving the strategies. Self-efficacy, outcome expectations, self-care behaviors and HbA1c were measured and compared in two groups in the starting, after three and six-months of the interventions. &ldquo;Intention to treat&rdquo; analysis was used. Data were analyzed using t test and ANOVA for repeated measures.<br> <strong>Results:</strong> Mean score of self-efficacy, outcome expectations and self-care behaviors revealed significant differences between two groups in the results of three and six months after the intervention (P < 0.01). A major fall in HbA1c was noted in the intervention group. The mean scores of the HbA1c showed a significant difference between two groups, six months after the intervention (P < 0.05). After the intervention diet, physical activity and foot care improved significantly in the intervention group (P < 0.001). No significant improvement occurred in self-monitoring of blood glucose and medication adherence between two groups after the intervention<br> <strong>Conclusion:</strong> It is concluded that implementing educational interventions based on the self-efficacy model and related strategies can be effective for patients with type-2 diabetes and is recommended to be used for patient education in the field of metabolic control.</div> Self-efficacy, Outcome-expectations, Self-care behaviors, Metabolic control, Intervention, Type-2 diabetes 205 214 http://jccnc.iums.ac.ir/browse.php?a_code=A-10-231-2&slc_lang=en&sid=1 Mahnoush Reisi reisi.mah@gmail.com 10031947532846003067 10031947532846003067 No Department of Health Education and Health Promotion, School of Health, Bushehr University of Medical Sciences, Bushehr, Iran. Homamodin Javadzede hom.javadzade@gmail.com 10031947532846003068 10031947532846003068 No Department of Health Education and Health Promotion, School of Health, Bushehr University of Medical Sciences, Bushehr, Iran. Gholamreza Sharifirad sharifirad@hlth.mui.ac.ir 10031947532846003069 10031947532846003069 No Department of Public Health, School of Health, Qom University of Medical Sciences and Health Services, Qom, Iran. Firoozeh Mostafavi fmostafavi@yahoo.com 10031947532846003070 10031947532846003070 No Department of Health Education and Health Services, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran. Elahe Tavassoli Tavassoli.eb@gmail.com 10031947532846003071 10031947532846003071 No Department of Public Health, School of Health, Shahrekord University of Medical Sciences, Shahrekord, Iran. Masoumeh Imanzad imanzad96@gmail.com 10031947532846003072 10031947532846003072 Yes Department of Social Medicine, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.