Table 1 Inclusion and exclusion criteria of adolescents, parent(s) and paediatric oncologists
Inclusion criteria (combined by ‘AND’) | Exclusion criteria (combined by ‘OR’) |
|---|---|
Adolescent | |
 Aged between 10 and 18 years | Participated in the feasibility test |
 Diagnosis of cancer ≥3 months prior to inclusion | Intellectual disabilities to an extent that general communication is very difficult, or serious mental health problems to an extent that the extra effort of participating in the study is not justified (estimated by the paediatric oncologist and psychologist) |
 Aware of, or informed about, cancer diagnosis according to parent(s) | Life expectancy ≤3 months |
 Receiving active treatment in a paediatric oncology ward | Not receiving active treatment (last treatment was more than 3 months ago) |
 Fluent Dutch language understanding |  |
Parent(s) | |
 Aware of, or informed about the diagnosis of their child according to the clinician | Participated in the feasibility test |
 Fluent Dutch language understanding | Intellectual disabilities to an extent that general communication is very difficult, or serious mental health problems to an extent that the extra effort of participating in the study is not justified (estimated by the paediatric oncologist and psychologist) |
Paediatric oncologist | |
 Medically involved in the treatment of the adolescent, indicated by the family to be the oncologist with whom the family has most contact about treatment |  |
 Fluent Dutch language understanding |  |