[1] UCL, Div Psychiat, London, England
[2] Barnet Enfield & Haringey Mental Hlth NHS Trust, Assessment & Intervent Team, Enfield, Middx, England
[3] Univ Glasgow, Sch Hlth & Wellbeing, Glasgow, Lanark, Scotland
[4] Univ Ulster, Belfast, Antrim, North Ireland
[5] Queen Mary Univ London, Wolfson Inst Populat Hlth, Ctr Primary Care, London, England
[6] UCL, Dept Primary Care & Populat Hlth, London, England
[7] Queen Mary Univ London, Unit Social & Community Psychiat, London, England