Tehran University of Medical Sciences Nursing Practice Today 2383-1154 5 1 2018 01 13 256 263 EN Farnaz Rahmani Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran. Sousan Valizadeh Departments of Pediatrics Nursing, Nursing and Midwifery Faculty, Tabriz University of Medical Sciences, Tabriz, Iran. Morteza Ghogazadeh Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran Farzane Bagheriyeh Department of Nursing Education, School of Nursing & Midwifery, Tabriz University of Medical Sciences, Tabriz, Iran 2017 10 30 2018 01 09 Background & Aim: Juvenile or type 1 diabetes mellitus is the most common metabolic and endocrine disorder in childhood and adolescence that affects quality of life. On the other hand, self-care agency could be considered as a significant factor in improving the quality of life. This study aimed to investigate the self-care agency and quality of life among Iranian adolescents with diabetes mellitus type 1 referring to the Diabetes Center at Sina Hospital in Tabriz, Iran. Materials and Methods: In a descriptive correlation study, 120 diabetic adolescents were selected from a pool of referrals to the Diabetes Center at Sina Hospital affiliated to the Tabriz University of Medical Sciences, using the convenience sampling process. Adolescents completed a demographic and clinical characteristics questionnaire, the Diabetes-Specific Quality Of Life Brief Clinical Inventory (DQOL-BCI), as well as the Self-Care Appraisal Scale. Statistical analysis included Pearson correlation coefficient, independent samples t-test, one-way ANOVA and linear regression. Data was analyzed by SPSS ver.16. Results: The mean score of quality of life and self-care agency was 32.14 (8.17) and 30.24 (8.64), respectively. There was a significant relationship between the quality of life and self-care agency (P<0.05). Furthermore, a significant correlation with some of the demographic and clinical characteristics was revealed (P<0.05). Conclusion: Based on the association between the quality of life and self-care agency in diabetic adolescents, researchers emphasize the need for planning diabetes education programs based on self-care training to improve the quality of life. https://npt.tums.ac.ir/index.php/npt/article/view/308 https://npt.tums.ac.ir/index.php/npt/article/download/308/271