Substance misuse, psychiatric disorder and violent and disturbed behaviour

Area of Science:

• Psychiatry
• Criminology
• Public Health

Background:

• Epidemiological studies indicate a correlation between schizophrenia, substance misuse, and increased rates of violence and crime.
• Understanding this link is crucial for public safety and patient care.

Purpose of the Study:

• To evaluate the existing literature on the association between substance misuse in schizophrenia and the risk of violence and disturbed behavior.
• To identify key factors contributing to this increased risk.

Main Methods:

• A comprehensive Medline database search was conducted.
• Relevant studies investigating schizophrenia, substance misuse, and violence were systematically reviewed.

Main Results:

• Substance misuse in schizophrenia is consistently linked to higher rates of violence and aggression.
• Factors such as male gender, homelessness, severe psychotic symptoms, and medication non-adherence are associated with increased risk.
• The heightened risk is not solely due to poor social integration but also influenced by psychopathology and intoxication.

Conclusions:

• Substance misuse is a significant risk factor for violent and disturbed behavior in individuals with schizophrenia.
• Further research is recommended to explore effective pharmacological and psychosocial treatment strategies.