Alcohol is a strong trigger of criminal violence

December 22, 2005

A study at Karolinska Institutet of 133 violent offenders in Sweden shows that 78 (58%) had consumed alcohol within 24 hours before the violent act. A large majority of the offenders were men with psychiatric diagnoses and most of the victims were known to them.

A 13.2-fold increase of risk of violence was found within 24 hours of alcohol consumption. The relative risk of violence was based on comparison to each individual's usual frequency of alcohol use during the previous year, in a case-crossover analysis.

Use of other drugs like benzodiazepines and antidepressants in regular doses was associated with a decreased risk of violence. Contrary to other studies the risk for criminal violence was not increased if the consumption of alcohol was combined with benzodiazepines.

"Alcohol seems to have the largest triggering effect on violence compared to other substances we investigated. This suggests that treatment for individuals at risk for violence should be focused on decreasing their alcohol consumption", says Ulrika Haggård-Grann of the Karolinska Institutet.
-end-
Publication:
The role of alcohol and drugs in triggering criminal violence: a case-crossover study
Haggård-Grann U, Hallqvist J, Långström N, Möller J.
Addiction (2006) 101:100-108
www.addictionjournal.org

For more information, please contact:
Dr Ulrika Haggård-Grann
Centre for Violence Prevention
Karolinska Institutet
Stockholm, Sweden
phone +46 736 596 000
mail: ulrika.haggard@cns.ki.se
web: www.cvp.se

Press Officer: Sabina Bossi, tel +46-8-524 838 95, e-mail: sabina.bossi@ki.se

Karolinska Institutet is one of the leading medical universities in Europe. Through research, education and information, Karolinska Institutet contributes to improving human health. Each year, the Nobel Assembly at Karolinska Institutet awards the Nobel Prize in Physiology or Medicine. For more information, visit ki.se.

Karolinska Institutet

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