[1] Univ Bristol, Med Sch, Populat Hlth Sci, Bristol, England
[2] Univ Bristol, Med Sch, Ctr Acad Mental Hlth, Bristol, England
[3] Gloucestershire Hlth & Care NHS Fdn Trust, Child & Adolescent Mental Hlth Serv, Gloucester, England
[4] Univ Bristol, Med Res Council, Integrat Epidemiol Unit, Bristol, England
[5] Univ Bristol, Bristol Med Sch, Translat Hlth Sci, Bristol, England
[6] Univ Hosp Bristol & Weston NHS Fdn Trust, Natl Inst Hlth Res Appl Res Collaborat West NIHR A, Biomed Res Ctr, Bristol, England
[7] Univ Hosp Bristol & Weston NHS Fdn Trust, Biomed Res Ctr, Bristol, England
[8] Univ Bristol, Sch Educ, Bristol, England
[9] South London & Maudsley NHS Fdn Trust, Bethlem Royal Hosp, Beckenham, England
[10] Univ Bristol, Med Sch, Populat Hlth Sci, Canynge Hall,Whatley Rd, Bristol BS8 2PS, England