title: Involuntary admission of emergency psychiatric patients: report from the Amsterdam Study of Acute Psychiatry.
abstract: OBJECTIVE
  This brief report presents initial data from the Amsterdam Study of Acute Psychiatry (ASAP-I) about factors associated with the decision to admit patients compulsorily (involuntarily) to emergency psychiatric services in the Amsterdam region of the Netherlands.
  
  
  METHODS
  The study was a prospective cohort study of 1,970 consecutive patients who came into contact with the Psychiatric Emergency Service Amsterdam.
  
  
  RESULTS
  A history of more than 14 outpatient contacts the previous year was associated with a low risk of compulsory admission (OR=.3). An involuntary admission in the previous five years was associated with a higher risk (OR=3.7). Referral by a general practitioner was associated with a low risk compared with referral by police (OR=2.4) or by mental health services (OR=2.3).
  
  
  CONCLUSIONS
  The hypothesis that outpatient treatment may help to prevent compulsory admission found some support in this study. More research is needed to understand the mechanisms of the associations so that an intervention study can be developed to test this hypothesis.
authors.affiliation: Research Department, ARKIN Mental Health Care, Amsterdam, Netherlands. lvdp@xs4all.nl
authors.forename: Louk
authors.initials: L
authors.lastname: van der Post
authors.forename: Cornelis L
authors.initials: CL
authors.lastname: Mulder
authors.forename: Clemens M L
authors.initials: CM
authors.lastname: Bernardt
authors.forename: Robert A
authors.initials: RA
authors.lastname: Schoevers
authors.forename: Aartjan T F
authors.initials: AT
authors.lastname: Beekman
authors.forename: J
authors.initials: J
authors.lastname: Dekker
mesh_terms: D000328:Adult; D003134:Commitment of Persons with Psychiatric Disorders / Q000706:statistics & numerical data*; D004630:Emergencies / Q000453:epidemiology / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology / Q000628:therapy*; D009426:Netherlands / Q000453:epidemiology; D011446:Prospective Studies