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Published Online: July 2013

Violent Behavior and Gender of Swedish Psychiatric Patients: A Prospective Clinical Study

Abstract

Objective

This study was designed to investigate the base rate of violent behavior, the predictive validity of the Classification of Violence Risk (COVR) software, and specific risk factors for violence among nonforensically involved psychiatric patients in Sweden.

Methods

On discharge from two psychiatric hospitals in Stockholm, 331 patients were interviewed. Telephone interviews with the patients and supportive others, as well as data from a national criminal register, were used to measure violent behavior 20 weeks after discharge. After the baseline interview, patients were assigned to different risk groups by the COVR software. Predicted risk was compared with the occurrence of actual acts of violence during the follow-up.

Results

Gender differences in base rates of violent behavior among the general psychiatric population were not found during the 20 weeks of follow-up after discharge. Violent behavior was significantly predicted by young age of males and by level of anger, violent thoughts, and victimization of females. The predictive validity of the COVR software was comparable between females (area under the curve [AUC]=.78) and males (AUC=.76).

Conclusions

Violent behavior was uncommon for all patients. Although several risk factors were significantly associated with violence by each gender, the COVR software could predict violence equally well for both genders.

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Information

Published In

Go to Psychiatric Services
Go to Psychiatric Services

Cover: The Artists' Parents in the Store, by Sidney Goodman, 1973–1975. Oil on canvas, 58½ × 77 inches. Collection of the Butler Institute of American Art, Youngstown, Ohio.

Psychiatric Services
Pages: 688 - 693
PubMed: 23584635

History

Published in print: July 2013
Published online: 15 October 2014

Authors

Details

Joakim Sturup, Ph.D.
Dr. Sturup and Dr. Kristiansson are affiliated with the Division of Social and Forensic Psychiatry, Karolinska Institutet, Box 4044, 14104, Huddinge, Sweden (e-mail: [email protected]). Dr. Monahan is with the University of Virginia School of Law, Charlottesville.
John Monahan, Ph.D.
Dr. Sturup and Dr. Kristiansson are affiliated with the Division of Social and Forensic Psychiatry, Karolinska Institutet, Box 4044, 14104, Huddinge, Sweden (e-mail: [email protected]). Dr. Monahan is with the University of Virginia School of Law, Charlottesville.
Marianne Kristiansson, Ph.D.
Dr. Sturup and Dr. Kristiansson are affiliated with the Division of Social and Forensic Psychiatry, Karolinska Institutet, Box 4044, 14104, Huddinge, Sweden (e-mail: [email protected]). Dr. Monahan is with the University of Virginia School of Law, Charlottesville.

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