Editorials

Assessing the risk of violence in patients

BMJ 2000; 320 doi: https://doi.org/10.1136/bmj.320.7242.1088 (Published 22 April 2000) Cite this as: BMJ 2000;320:1088

Risks can be assessed, but the results still pose ethical and political dilemmas

  1. Jenny Shaw, senior lecturer in forensic psychiatry
  1. Guild Community Health Care NHS Trust, Guild Lodge, Preston PR3 2AZ

    Papers p 1112

    Is it possible to predict violence by patients in clinical practice? Politicians are all too ready to assume that it is and that healthcare professionals are at fault when a mentally ill person commits a violent act. Epidemiological approaches examining the inter-relationship between violence and mental illness have suggested that an association exists but that it is small.13 Fifteen years ago research suggested that clinicians were more often wrong than right in their risk predictions4 but more recent studies have shown that clinicians are getting better at predicting risk of violence, albeit in the short term.5

    An influential longitudinal cohort study of psychiatric inpatients from the United States showed that the one year prevalence rate of violence was 18% for those with major mental disorder and 31% for patients with comorbid substance misuse disorder.6 Actuarial and clinical research studies have identified risk factors associated with violence drawn from a variety of domains. Key risk factors include demographic factors (being male, young, and in the lowest socioeconomic class),1 a history of previous violence, …

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