Psychosis as a risk factor for violence to others: a meta-analysis
UMass Chan Affiliations
Department of Psychiatry, Center for Mental Health Services ResearchDocument Type
Journal ArticlePublication Date
2009-08-26Keywords
CausalityHospitals, Psychiatric
Humans
Institutionalization
Internal-External Control
Mental Disorders
Odds Ratio
Psychotic Disorders
Research Design
Risk Factors
Violence
Health Services Research
Mental and Social Health
Psychiatric and Mental Health
Psychiatry
Psychiatry and Psychology
Metadata
Show full item recordAbstract
The potential association between psychosis and violence to others has long been debated. Past research findings are mixed and appear to depend on numerous potential moderators. As such, the authors conducted a quantitative review (meta-analysis) of research on the association between psychosis and violence. A total of 885 effect sizes (odds ratios) were calculated or estimated from 204 studies on the basis of 166 independent data sets. The central tendency (median) of the effect sizes indicated that psychosis was significantly associated with a 49%-68% increase in the odds of violence. However, there was substantial dispersion among effect sizes. Moderation analyses indicated that the dispersion was attributable in part to methodological factors, such as study design (e.g., community vs. institutional samples), definition and measurement of psychosis (e.g., diagnostic vs. symptom-level measurement, type of symptom), and comparison group (e.g., psychosis compared with externalizing vs. internalizing vs. no mental disorder). The authors discuss these findings in light of potential causal models of the association between psychosis and violence, the role of psychosis in violence risk assessment and management, and recommendations for future research.Source
Psychol Bull. 2009 Sep;135(5):679-706. Link to article on publisher's siteDOI
10.1037/a0016311Permanent Link to this Item
http://hdl.handle.net/20.500.14038/45251PubMed ID
19702378Related Resources
Link to Article in PubMedae974a485f413a2113503eed53cd6c53
10.1037/a0016311