Effectiveness of a Transition Program for Adolescents With Type 1 Diabetes in the Transition to Adulthood

Behavioral: Transition program Participants will be part of a transition program that aim to prepare them for adult life and adult care wich includes eight key components: 1. A transition coordinator; 2. Education on diabetes, treatments, health behavior, dealing with school, friends; 3. Telephone availability; 4. Information about the adult diabetes service: 5. Guidance of parents; 6. Meeting with peers: 7. A person-centered transition plan; and 8. Preparation and transfer to adult diabetes service.

Participants allocated to this group will receive usual care, which includes regular follow-up visits in pediatric diabetes outpatient clinics. Usual care can vary across the two clinics, however, they all include meetings with a nurse and a physician.