title: History of offending behavior in first episode psychosis patients: a marker of specific clinical needs and a call for early detection strategies among young offenders.
abstract: OBJECTIVE
  Previous literature suggests that early psychosis (EP) patients with a history of offending behavior (HOB) have specific clinical needs. The aims of this study were to assess: (1) the prevalence of HOB in a representative sample of EP; (2) the premorbid and baseline characteristics of patients with HOB, and (3) the potential differences in short-term outcome of such patients when compared to patients without HOB.
  
  
  METHODS
  The Early Psychosis Prevention and Intervention Centre (EPPIC) admitted 786 EP patients between 1998 and 2000. Data were collected from patients' files using a standardized questionnaire. Data of 647 patients could be analyzed.
  
  
  RESULTS
  HOB patients (29% of the sample) were more likely to be male with lower level of premorbid functioning and education, have used illicit substances and have attempted suicide. They presented with a more complex clinical picture and had poorer 18-month outcome. Most importantly, they had a significantly longer duration of untreated psychosis.
  
  
  CONCLUSIONS
  On the basis of the high prevalence and specific features of EP patients with HOB, our study confirms a need for additional research in this domain and for the development of specific treatment strategies. Most importantly, it suggests a need for the promotion of early detection strategies among the populations of young offenders, considering that some of them may be going through the early phases of a psychotic disorder and that reduction of treatment delay and provision of well adapted interventions may have a significant impact at numerous levels in such patients.
authors.affiliation: Treatment and Early Intervention in Psychosis Program(TIPP), Service of General Psychiatry, Department of Psychiatry, Lausanne University Hospital (CHUV), Clinique de Cery, 1008 Prilly, Switzerland. Electronic address: regis.marion-veyron@chuv.ch.
authors.forename: Régis
authors.initials: R
authors.lastname: Marion-Veyron
authors.affiliation: Psychosis Early Detection and Intervention Centre (PEDIC), Centre for Psychosocial Medicine, Department for Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Lambert
authors.affiliation: Orygen, The National Centre of Excellence in Youth Mental Health, 35 Poplar Road, Parkville, VIC 3052, Australia; Centre for Youth Mental Health, The University of Melbourne, 35 Poplar Road, Parkville, Victoria 3052, Melbourne, Australia.
authors.forename: Sue M
authors.initials: SM
authors.lastname: Cotton
authors.affiliation: University Hospital of Child and Adolescent Psychiatry, University of Bern, Bern, Switzerland.
authors.forename: Benno G
authors.initials: BG
authors.lastname: Schimmelmann
authors.affiliation: Service of Correctional Medicine and Psychiatry (SMPP) and Legal Psychiatry Institute, Department of Psychiatry, Lausanne University Hospital (CHUV), Clinique de Cery, 1008 Prilly, Switzerland.
authors.forename: Bruno
authors.initials: B
authors.lastname: Gravier
authors.affiliation: Orygen, The National Centre of Excellence in Youth Mental Health, 35 Poplar Road, Parkville, VIC 3052, Australia; Centre for Youth Mental Health, The University of Melbourne, 35 Poplar Road, Parkville, Victoria 3052, Melbourne, Australia.
authors.forename: Patrick D
authors.initials: PD
authors.lastname: McGorry
authors.affiliation: Treatment and Early Intervention in Psychosis Program(TIPP), Service of General Psychiatry, Department of Psychiatry, Lausanne University Hospital (CHUV), Clinique de Cery, 1008 Prilly, Switzerland; Orygen, The National Centre of Excellence in Youth Mental Health, 35 Poplar Road, Parkville, VIC 3052, Australia.
authors.forename: Philippe
authors.initials: P
authors.lastname: Conus
mesh_terms: D000293:Adolescent; D000328:Adult; D003415:Crime / Q000145:classification / Q000523:psychology* / Q000706:statistics & numerical data; D042241:Early Diagnosis; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D011569:Psychiatric Status Rating Scales; D011618:Psychotic Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D012189:Retrospective Studies; D012559:Schizophrenia / Q000453:epidemiology*; D012565:Schizophrenic Psychology; D012737:Sex Factors; D011795:Surveys and Questionnaires; D016896:Treatment Outcome; D055815:Young Adult
keywords: Duration of untreated psychosis; Early psychosis; Offending behavior; Outcome