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The Royal College of Psychiatrists Improving the lives of people with mental illness


Current studies

Child & Adolescent Psychiatry Surveillance System

Cost-effectiveness of models of care for young people with eating disorders (CostED)

  • The CostED study is a UK- and Republic of Ireland- wide study which commenced in February 2015. It is the largest CAPSS study to date.
  • The study will identify incident cases of anorexia nervosa in young people aged between 8 and 17 years and 11 months and classify the models of care provided.
  • Follow-up data will be used to evaluate whether increased investment in community-based specialist eating disorder services would benefit young people and provide good value for money to the NHS.
  • Funded by: National Institute for Health Research (11/1023/17) and Health and Social Care Research and Development Division, Public Health Agency (Northern Ireland)
  • Approved by: King’s College London REC [PNM/13/14-105] and the Health Research Authority Confidentiality Advisory Group [CAG 4-03(PR1)/2014] under Section 251. 

Lead investigator: Sarah Byford, Professor of Health Economics, Centre for the Economics of Mental and Physical Health, King’s College London, De Crespigny Park, London SE5 8AF;

Further information on the study, including the case definition and reporting instructions, are available from:


Gender Identity Disorder (GID)

*  This UK- and Republic of Ireland-wide study commenced in November 2011. 

*  It is the first formal epidemiological study of GID in children and adolescents and will involve consultant Paediatricians as well as Child and Adolescent Psychiatrists

*  The study aims to estimate the incidence of GID; describe clinical presentation, co-morbidities and natural history; and examine current management and short-term treatment outcomes

*  The study will inform service provision and clinical management of this important condition

*  Funded by: Tavistock & Portman grant via the Advisory Group for National Specialised Services

*  REC Approval: London Bloomsbury REC (ref.11/LO/1512) and the National Information Governance Board under Section 251 (ECC 8-02(FT4)/2011).


REC Approval: the Charing Cross Hospital MREC (Ref: 08/H0711/30), PIAG Section 60 Support (Ref: PIAG/BPSU 3-06(FT1)/2008)


Lead InvestigatorDr Sophie Khadr Academic Clinical Lecturer General and Adolescent Paediatrics, UCL Institute of Child Health, 30 Guilford St, London WC1N 1EH.


Further information on the study, including the case definition and reporting instructions, are available from:





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