Characteristics of research project for which CIs most recently completed data collection
| Variable | N (%) |
| Type of project (n=61) | |
| Multicentre | 46 (75) |
| Single site | 15 (25) |
| Methodology (n=61) | |
| Randomised controlled trial | 18 (30) |
| Observational study | 14 (23) |
| Non-randomised trial | 8 (13) |
| Interviews | 7 (11) |
| Mixed methods study | 7 (11) |
| Questionnaire | 4 (7) |
| Focus group | 2 (3) |
| Participant observation | 1 (2) |
| Use of audio/video/the internet (n=60) | |
| Audio recording | 21 (35) |
| Video | 7 (12) |
| Internet | 7 (12) |
| Study participants (n=60) | |
| Children and young people | 57 (95) |
| Parents | 27 (45) |
| Health professionals | 19 (32) |
| Siblings | 8 (13) |
| Language of children and young people and families (n=61) | |
| English as a second language | 44 (72) |
CI, chief investigator.