1 National Centre for Social Research, 35 Northampton Square, London EC1V0AX, UK.
2 City, University of London, London EC1V 0HB.
3 Population Health Sciences, University of Bristol; National Institute of Health Research Biomedical Research Centre at the University Hospitals Bristol NHS Foundation Trust and the University of Bristol, Bristol, University of London, London EC1V 0HB, UK.
4 Division of Psychiatry, University College London, London, UK.
5 Camden and Islington NHS Foundation Trust, UK, London, UK.
6 IoPPN, Section of Women's Mental Health, Kings College London, London, UK.
7 Department of Health Sciences, University of Leicester, Leicester, UK.
8 Health Services and Population Research Department, IoPPN, Kings College London, London, UK.
9 School of Health and Related Research, University of Sheffield, Sheffield, UK.
10 Division of Psychology and Mental Health, University of Manchester, Manchester, UK.