title: [Systematic review of the role of service users as researchers in mental health studies].
abstract: OBJECTIVE
  Service user involvement in mental health service development and research is becoming more common in countries like the UK, USA and Canada. This systematic review of the international scientific literature has been carried out to assess the stage of development of mental health service users involvement in research.
  
  
  METHODS
  Systematic review of any research project actively involving service users in any part of the research process.
  
  
  RESULTS
  Thirty-five studies met the inclusion and exclusion criteria and were included in the systematic review. Nine studies used quantitative techniques, 24 used qualitative techniques and two studies used both quantitative and qualitative techniques. While three studies were user-led, in three other studies the users were simply consulted but did not have any active role in the research. The remaining 29 studies were based on a collaboration between service users and professional researchers.
  
  
  CONCLUSIONS
  The involvement of mental health service users in the research process is feasible both in quantitative and qualitative research studies. The involvement of service users in research has a number of benefits; such research requires more accurate planning and more time than the traditional research.
authors.affiliation: Dipartimento di Medicina e Sanità Pubblica, Sezione di Psichiatria e Psicologia Clinica, Universita di Verona, Verona.
authors.forename: Giovanni
authors.initials: G
authors.lastname: Salvi
authors.forename: Julia
authors.initials: J
authors.lastname: Jones
authors.forename: Mirella
authors.initials: M
authors.lastname: Ruggeri
mesh_terms: D035843:Biomedical Research / Q000379:methods*; D006801:Humans; D001523:Mental Disorders / Q000628:therapy*; D008605:Mental Health Services / Q000706:statistics & numerical data*; D028642:Persons with Psychiatric Disorders; D010358:Patient Participation; D012107:Research Design; D035842:Research Subjects / Q000523:psychology*; D012380:Role