This post presents a clinical study investigating the relationship between schizophrenia and aggressive behavior in a Romanian population. Conducted by researchers from the Iuliu Hațieganu University of Medicine and Pharmacy and the Emergency County Hospital of Cluj-Napoca, the study examines the actual risk of violence among patients with schizophrenia, accounting for key confounding factors such as alcohol and substance use.

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Authors:
Maria Bonea – Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania (RO)
Iulia Larisa Kadar – Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania (RO)
Cristian Delcea – Emergency County Hospital, Cluj-Napoca, Romania (RO)
Bianca Malina Horgoș – Emergency County Hospital, Cluj-Napoca, Romania (RO)
Catalina Angela Crișan – Iuliu Hațieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania (RO)

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Background and Rationale

Schizophrenia remains one of the most stigmatized mental disorders, often associated in public perception with violence and unpredictability. In Romania, as in many other countries, this stigma contributes to fear, social exclusion, and discrimination toward people living with schizophrenia.

However, scientific data on the actual relationship between schizophrenia and aggression are limited, especially within the Romanian context, where alcohol and substance use — themselves major risk factors for violence — are highly prevalent.

This study aims to provide evidence-based insight into whether patients with schizophrenia truly exhibit higher levels of aggression and how coexisting risk factors influence that behavior.

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Objectives

1. To compare aggressivity levels between hospitalized patients with schizophrenia and healthy control participants.
2. To identify potential risk factors and confounders influencing aggressive behavior, particularly alcohol and substance abuse.
3. To contribute to the development of informed public health strategies for reducing violence risk and stigma.

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Methodology

This case-control study included 100 participants, matched for age and gender:

• Case group: 50 patients diagnosed with schizophrenia and hospitalized in an emergency psychiatric facility;
• Control group: 50 healthy individuals with no history of psychiatric disorders.

The following standardized tools were used:

• Mini International Neuropsychiatric Interview (MINI) – for psychiatric screening;
• Buss-Perry Aggression Questionnaire (BPAQ) – for measuring aggression levels across physical, verbal, anger, and hostility domains;
• CAGE questionnaire – for detecting alcohol abuse;
• Drug Abuse Screening Test (DAST-10) – for identifying substance use disorders.

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Key Findings

• Patients with schizophrenia exhibited a 3.93-fold increase in aggressivity compared to healthy controls.
• The highest aggression scores were associated with younger male patients and those reporting alcohol abuse.
• Substance use disorders and non-adherence to treatment further increased the likelihood of violent behavior.
• Distinct domains of aggression—particularly physical and verbal components—were more pronounced in the schizophrenia group.

However, the study also emphasizes that aggression in schizophrenia is not universal and often arises in interaction with confounding factors, such as intoxication, acute psychosis, or social stressors.

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Discussion

The findings underscore the importance of contextualizing violence risk in schizophrenia rather than viewing it as a direct result of the illness itself.

Most individuals with schizophrenia are not violent and are far more likely to be victims of violence than perpetrators. Nonetheless, untreated psychosis, comorbid substance abuse, and social deprivation can increase risk in specific cases.

To address these challenges, the authors recommend:

• Improving treatment adherence and continuity of care;
• Integrating substance abuse management within psychiatric services;
• Public health campaigns aimed at reducing stigma and promoting early intervention;
• Training healthcare professionals in recognizing and managing high-risk situations.

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Conclusion

This Romanian study contributes valuable data to the global understanding of aggression and schizophrenia, showing that while aggression levels are higher among patients, these differences are largely mediated by confounding factors such as age, gender, and alcohol use.

Effective prevention and treatment strategies must therefore go beyond the psychiatric diagnosis itself, focusing on holistic care, rehabilitation, and social reintegration.

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See full paper here: https://brain.edusoft.ro/index.php/brain/article/view/1633.