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Predicting violence using structured professional judgment in patients with different mental and behavioral disorders

Gray, Nicola Susan, Taylor, John and Snowden, Robert Jefferson 2011. Predicting violence using structured professional judgment in patients with different mental and behavioral disorders. Psychiatry Research 187 (1-2) , pp. 248-253. 10.1016/j.psychres.2010.10.011

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Abstract

We examined whether a leading instrument for the prediction of future violence in those with a mental disorder. The Historical, Clinical, Risk Management-20 (HCR-20) was equally effective across a wide range of mental health diagnoses. Records at the time of discharge from secure psychiatric services were used to score the HCR-20 risk assessment scheme. Patients were stratified according to whether they had received a particular mental health diagnosis. Reconvictions within 2 years of discharge were obtained from official sources and classified as to whether the offence was violent or not. Those with a diagnosis of either personality disorder or substance abuse were most likely to be reconvicted, whilst those with either a diagnosis of schizophrenia or mental retardation were the least likely. The HCR-20 was a statistically significant predictor of future violence in all groups; however, it returned only weak effects for the personality disordered group, but strong effects for those in the schizophrenia or mental retardation group. The HCR-20 risk assessment scheme is effective across a wide range of diagnoses. Nevertheless, the prediction of future events appears more difficult in those disorders characterized by impulsive behaviors and further research efforts are needed to understand how such prediction can be improved.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
H Social Sciences > HV Social pathology. Social and public welfare
R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: Violence risk assessment; HCR-20; Schizophrenia; Personality disorder; Mood disorder; Intellectual disability
Publisher: Elsevier
ISSN: 0165-1781
Last Modified: 04 Jun 2017 02:47
URI: http://orca-mwe.cf.ac.uk/id/eprint/12176

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