1. Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK
2. NIHR Bristol Biomedical Research Centre, University Hospitals Bristol and Weston NHS Foundation Trust and University of Bristol, Bristol, UK
3. Avon and Wiltshire Partnership Trust, South Gloucestershire Child and Adolescent Psychiatry, Kingswood Hub, Kingswood, UK
4. School of Education, University of Bristol, Bristol, UK
5. Centre for Academic Mental Health, Bristol University Medical School, Bristol, UK
6. Medical Research Council Integrative Epidemiology Unit, University of Bristol, Bristol, UK
7. Gloucestershire Health and Care NHS Foundation Trust, Child and Adolescent Mental Health Services, Gloucester, UK
8. The National Institute for Health Research Applied Research Collaboration West, University Hospitals Bristol and Weston National Health Service Foundation Trust, Bristol, UK