Teen Depression May Hike Risk for Later Violence

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Teen Depression May Hike Risk for Later Violence

Emerging research suggests adolescent depression increases the risk of violence later in life.

Using a longitudinal study design, investigators discovered a consistent pattern of teen depression then increased risk of later violence. Since both depression and violence are prevalent in adolescents and young adults, the findings indicate the importance of early detection and treatment of depression.

The study examined the longitudinal association between depression and subsequent violence from three representative samples in the Netherlands, United Kingdom and Finland.

Researchers for these three cohorts used complementary measures of depression, including self-report and clinical diagnoses, and different measurements of violence including informant reports of violence and official convictions for violent crimes.

The study appears in the Journal of the American Academy of Child and Adolescent Psychiatry (JAACAP).

The research team, led by Professor Seena Fazel, from the Forensic Psychiatry Group at the University of Oxford, United Kingdom, found modest increases in risk of violence in depression.

In absolute terms, for instance, in the Finnish sample, 7.1 percent of individuals with depression were convicted of one or more violent crimes, compared with 3.6 percent in the general population without depression.

In relative terms, across samples and measurements, the study shows a consistent pattern of increased relative risk of later violence.

In the Dutch and UK samples, an increase in depressive symptoms was associated with a significant elevated risk of later violence.

In the Finnish sample, the odds of violence in individuals with a diagnosis of depression were increased two-fold, compared to those without depression.

Investigators believe these findings highlight the need for active and early treatment of depression in adolescents and young people.

The mechanisms behind this link need further investigation, and may involve increased impulsivity, hostility and poor self-regulation.

“We know that high rates of depression have been reported among adolescents in juvenile detention and correctional facilities (e.g.,11 percent in boys and 29 percent in girls),” said Dr. Rongqin Yu, lead researcher at the University of Oxford, United Kingdom.

“However, the longitudinal link between depression and violence was unclear. Our longitudinal design allowed us to take into account previous violence, enabling us to test whether adolescent depression is associated with changes in violence over time.

We found a consistent pattern of increased risk of later violence across samples. Both depression and violence are prevalent in adolescents and young adults; our findings indicate the importance of early detection and treatment of depression.”

Said Fazel, “This research is important for two main reasons. First, it adds to the evidence of the many potential harms of untreated depression in young people. Second, it suggests that closer liaison between criminal justice and mental health might prevent violence in high-risk individuals.”

Source: Elsevier

August 2, 2017 at 07:27AM

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