Characteristics of patients, parents and health professionals taking part in the semi-structured interviews
| Semi-structured interviews | N=32 |
| Adolescents (16–18 years) | n=6 |
| Sex, female, n (%) | 4 (67%) |
| Age, mean (SD) | 17.5 (±0.84) |
| Parents of adolescents | n=5 |
| Sex, female, n (%) | 4 (80%) |
| Young adults (18–25 years) | n=6 |
| Sex, female, n (%) | 4 (67%) |
| Age, mean (SD) | 21.3 (±2.07) |
| Parents of young adults | n=5 |
| Sex, female, n (%) | 5 (100%) |
| Healthcare professionals | n=10 |
| Child care services | 6 (60%) |
| Adult care services | 3 (30%) |
| Both services* | 1 (10%) |
*The physician is involved in both paediatric care and adult care services.