Questionnaires administered during the trial.
| Category of questionnaire | Specific questionnaire used | Visit administered |
| Fear of hypoglycaemia | Hypoglycaemic Fear Survey-II Worry scale: 17–<25 years. Children’s Hypoglycaemia Fear Survey 12–17 years. | 1, 11, 16 |
| Hypoglycaemia awareness | Hypoglycaemia Awareness Scale (Gold Score) | 1, 11, 16 |
| Anxiety | State–Trait Anxiety Inventory (Child version for 12–15 years, adult version≥16–<25 years) | 1, 11, 16 |
| Treatment impact and satisfaction | The Diabetes Treatment Satisfaction Questionnaire status and change version (16–<25 years), teen version (12–16 years) | 1, 11, 16 (status version) 16 (change version) |
| Functional health status | EuroQuol-5 Dimension-Youth (EQ-5D-Y) | 1, 6, 11, 16 |
| Diabetes specific quality of life | Pediatric quality of life (PedsQL)—Child version (12 year olds), adolescent version13–18 and young adult version (18 –<25). | 1, 11, 16 |
| Diabetes distress | Problem Areas in Diabetes (Teen version for 12–17 years, standard version≥17–<25 year) | 1, 11, 16 |