Navigation Links
New ways to predict violent behavior?
Date:9/25/2009

In the future, diagnosing severe personality disorders, evaluating the childhood environment, assessing alcohol consumption and the analysis of the MAOA genotype may provide more accurate means for assessing risk among violent offenders, according to the Finnish research carried out jointly at the University of Helsinki and the Helsinki University Central Hospital Psychiatry Centre.

"The many negative effects of violence could be alleviated by improving the accuracy of predicting violent behaviour. Lack of knowledge about the root causes of violence is, however, an impediment for such predictions," says Roope Tikkanen, MD, who has published his doctoral dissertation on the subject.

Tikkanen analysed the risk factors of violent reconvictions and mortality, using research data collated by Professor Matti Virkkunen based on court-ordered mental status examinations carried out in Finland during 1990-1998. The majority of the 242 men participating in the study suffered from alcoholism and severe personality disorders. The control group comprised 1,210 Finnish males matched by sex, age and place of birth. Following a nine-year follow-up period, the risk analyses were conducted based on criminal register (Legal Register Centre) and mortality (Statistics Finland) data.

Risk variables used in the analyses were antisocial personality disorder (ASPD), borderline personality disorder (BPD), the comorbidity of ASPD and BPD, childhood adversities, alcohol consumption, age, and the monoamine oxidase A (MAOA) genotype. In addition to these factors, the temperament dimensions were also assessed using the Tridimensional Personality Questionnaire (TPQ).

The prevalence of recidivistic acts of violence (32%) and mortality (16%) was high among the offenders. Severe personality disorders and childhood adversities increased the risk of recidivism and mortality both among offenders and in comparison to the controls. Offenders with BPD and a history of childhood maltreatment stood out as having a particularly poor prognosis.

The MAOA genotype was associated with the effects of alcohol consumption and aging on recidivism. With high-activity MAOA(MAOA-H) offenders, alcohol consumption and age affected the risk of violent reconvictions alcohol increasing it and aging decreasing it while with low-activity MAOA (MAOA-L) offenders no such link existed.

The temperament dimensions of offenders included high novelty seeking, high harm avoidance, and low reward dependence which correspond to the definition of an explosive personality.

"The risks of violent reconvictions and mortality accumulate in clear subgroups of violent offenders. Diagnosing severe personality disorders, assessing childhood environments and long-term alcohol consumption, and analysing the MAOA genotype may be tools that can in the future be employed in the prevention of recidivism and mortality and improving the accuracy of risk assessment among offenders," says Tikkanen.


'/>"/>

Contact: Roope Tikkanen
roope.tikkanen@helsinki.fi
358-405-155-869
University of Helsinki
Source:Eurekalert

Related medicine news :

1. Waist-to-hip ratio may better predict cardiovascular risk than body mass index
2. UCLA researchers identify markers that may predict diabetes in still-healthy people
3. Use of certain lipid measures not more effective in predicting coronary heart disease
4. First biomarker discovered that predicts prostate cancer outcome
5. Brain Lesions Predict MS Progression
6. ZIP codes and property values predict obesity rates
7. Work Time Predicts Sleep Time
8. Thomson Scientific Predicts Nobel Laureates
9. Segal Survey Predicts Declines in Trends for Fifth Consecutive Year
10. Molecular fingerprint of breast-cancer drug resistance can predict response to treatment
11. Molecular profiling can accurately predict survival in colon cancer patients
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/26/2016)... ... 27, 2016 , ... Quality metrics are proliferating in cancer care, and are ... the eye of the beholder, according to experts who offered insights and commentary in ... Managed Care. For the full issue, click here . , For the American ...
(Date:6/26/2016)... ... June 26, 2016 , ... Many ... been diagnosed with endometriosis. These women need a treatment plan to not only ... approach that can help for preservation of fertility and ultimately achieving a pregnancy. ...
(Date:6/25/2016)... ... June 25, 2016 , ... First Choice Emergency Room ... Dr. Sesan Ogunleye, as the Medical Director of its new Mesquite-Samuell Farm facility. ... of our new Mesquite location,” said Dr. James M. Muzzarelli, Executive Medical Director of ...
(Date:6/24/2016)... ... 2016 , ... A recent article published June 14 on E ... goes on to state that individuals are now more comfortable seeking to undergo not ... as calf and cheek reduction. The Los Angeles area medical group, Beverly Hills Physicians ...
(Date:6/24/2016)... ... June 24, 2016 , ... Global law firm Greenberg Traurig, P.A. announced that ... chosen by their peers for this recognition are considered among the top 2 percent ... special honors as members of this year’s Legal Elite Hall of Fame: Miami ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... 24, 2016   Bay Area Lyme Foundation ... Dean Center for Tick Borne Illness , Harvard ... MIT Hacking Medicine, University of California, Berkeley, and ... the five finalists of Lyme Innovation , ... than 100 scientists, clinicians, researchers, entrepreneurs, and investors ...
(Date:6/24/2016)... 2016 Research and Markets ... Electronics 2015-2025: Applications, Technologies, Forecasts" report to ... In-Mold Electronics, Smart Skin, Structural Health Monitoring, Composite ... Structural electronics involves electronic and/or electrical components and ... dumb structures such as vehicle bodies or conformally ...
(Date:6/24/2016)... Dehaier Medical Systems Ltd. (NASDAQ: ... and sells medical devices and wearable sleep respiratory products ... cooperation agreement with Hongyuan Supply Chain Management Co., Ltd. ... 20, 2016, to develop Dehaier,s new Internet medical technology ... will leverage Hongyuan Supply Chain,s sales platform to reach ...
Breaking Medicine Technology: