Prevalence of Psychiatric Disorders among Teenage Offenders

There has been a significant number of adolescents admitted to National Youth Service of Chile (SENAME) detention centers in recent years, specifically since the promulgation of a law reform on juveniles' penal responsibility for people aged 14 to 18 years (2006).

To determine the prevalence of psychiatric disorders in adolescent male offenders aged between 14 and 17 years.

The Mini International Neuropsychiatric Interview for Kids and Adolescents (MINI-KID) was applied to 489 adolescents admitted to detention centers, to determine the presence of psychiatric disorders. (Hypo) maniac episodes, eating disorders, pervasive developmental disorders, tic disorders, and psychotic disorders were excluded. Furthermore, for purposes of analysis, 23 cases that used a substance of abuse or had signs of consumption the day of the interview were excluded.

Eighty six percent of respondents had at least one psychiatric disorder. 

• The most common were substance use disorders (76%). 
• Among these, marijuana dependence disorder had the higher frequency (51%). 
• Disruptive behavior disorders had also a high prevalence (38%), 
• followed by anxiety disorders (27%), 
• attention deficit and hyperactivity disorder (26%), 
• and affective disorders (21%).

There is a high prevalence of psychiatric morbidity among teenage offenders which could undermine rehabilitation.

Via:  http://ht.ly/SsoRe 

See also: Prevalencia de trastornos psiquiátricos en adolescentes infractores de ley en Chile at:  http://ht.ly/SsoQ3 

By: Gaete J, Labbé N, Del Villar P, Allende C, Valenzuela E.

Association Between Number of Psychiatric Disorders and Violent Reoffending in Male Released Prisoners

Error bars are 95% CIs.

Read more at: http://ht.ly/S88T2

By: Chang Z1, Larsson H2, Lichtenstein P2, Fazel S3.

• 1Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
• 2Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
• 3Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK.

Probability of Violent Reoffending by Sex, Time After Release, and Psychiatric Disorder Status

Error bars are 95% CIs.

Read more at: http://ht.ly/S88T2

By: Chang Z1, Larsson H2, Lichtenstein P2, Fazel S3.

• 1Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
• 2Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
• 3Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK.

Psychiatric Disorders & Violent Reoffending: A National Cohort Study of Convicted Prisoners in Sweden

Reoffending and presence of psychiatric disorders are common in prisoners worldwide. However, whether psychiatric disorders are risk factors for reoffending is still unknown. We aimed to examine the association between psychiatric disorders, including substance use disorder, and violent reoffending.

We did a longitudinal cohort study of 47 326 prisoners who were imprisoned since Jan 1, 2000, and released before Dec 31, 2009, in Sweden. We obtained data for diagnosed psychiatric disorders from both inpatient and outpatient registers, and sociodemographic and criminological factors from other population-based registers...

Diagnosed psychiatric disorders were associated with an increased hazard of violent reoffending in male and female prisoners, and these associations were independent of measured sociodemographic and criminological factors, and, in men, remained substantial after adjustment for unmeasured familial factors. However, findings differed between individual diagnoses and sex. We found some evidence of stronger effects on violent reoffending of alcohol and drug use disorders and bipolar disorder than of other psychiatric disorders. Alcohol use disorder seemed to have a greater effect in women than in men. The overall effects of psychiatric disorders did not differ with severity of crime. The hazard of violent reoffending increased in a stepwise way with the number of diagnosed psychiatric disorders. Assuming causality, up to 20% of violent reoffending in men and 40% in women was attributable to the diagnosed psychiatric disorders that we investigated.

Certain psychiatric disorders are associated with a substantially increased hazard of violent reoffending. Because these disorders are prevalent and mostly treatable, improvements to prison mental health services could counteract the cycle of reoffending and improve both public health and safety. National violence prevention strategies should consider the role of prison health.

Read more at: http://ht.ly/S88T2

By: Chang Z1, Larsson H2, Lichtenstein P2, Fazel S3.

• 1Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK; Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
• 2Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
• 3Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK.