title: Homicide in psychiatric hospitals in Australia and New Zealand.
abstract: OBJECTIVE
  The aim of this study was to identify and describe the circumstances of homicides that have occurred in inpatient psychiatric facilities in Australia and New Zealand in the past 25 years.
  
  
  METHODS
  Homicides in psychiatric hospitals were identified by an acquaintance chain method.
  
  
  RESULTS
  Eleven homicides by ten patients occurred within psychiatric hospital wards in Australia and New Zealand between 1985 and 2010. The homicides fell into three broad categories: homicides by acutely ill patients soon after admission, homicides by forensic patients in low-security settings, and homicides in which vulnerable and elderly patients were victims.
  
  
  CONCLUSIONS
  Acute psychiatric units should have adequate procedures for controlling acutely ill and physically menacing patients. It is also recommended that patients who have committed serious violence in response to symptoms during previous episodes of illness be treated with an adequate dose of antipsychotic medication. An important task in any psychiatric hospital is to protect patients and staff from physical violence.
authors.affiliation: Clinical Research Unit for Anxiety and Depression, St Vincent’s Hospital, 390 Victoria St, Darlinghurst, New South Wales 2010, Australia. olavn@ozemail.com.au
authors.forename: Olav
authors.initials: O
authors.lastname: Nielssen
authors.forename: Matthew M
authors.initials: MM
authors.lastname: Large
mesh_terms: D000374:Aggression / Q000523:psychology*; D014150:Antipsychotic Agents / Q000627:therapeutic use; D001315:Australia / Q000453:epidemiology; D006708:Homicide / Q000523:psychology / Q000706:statistics & numerical data*; D006778:Hospitals, Psychiatric / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D009520:New Zealand / Q000453:epidemiology; D012559:Schizophrenia / Q000453:epidemiology*; D012565:Schizophrenic Psychology; D014754:Violence / Q000517:prevention & control; D055815:Young Adult
chemical_list: D014150:Antipsychotic Agents