The Cost-efficacy of Psychological Intervention for Strengthening Parental Authority Among Parents of Diabetic Adolescents With Poor Glycemic Control

A three arms, open, randomized interventional study including 100 participants in order to evaluate the cost-efficacy of psychological intervention for strengthening parental authority among parents of diabetic adolescents with poor glycemic control. All participants will be randomized into three groups:1.The first group will get a psychological treatment in order to strengthen the parent's authority. 2.The second group will get an education of a nurse and a dietician. 3.The third group will serve as a control group and will not go through an intervention. The following data will be analyzed during the study: 1.Changes in HbA1c. 2.Changes in parents authority. 3.Changes in the diabetes treatment by the adolescents. 4.Consumption of health services. 5.The costs of all psychological treatments.