Related Experiment Video
Updated: Jul 10, 2026

Handwriting Analysis Indicates Spontaneous Dyskinesias in Neuroleptic Naïve Adolescents at High Risk for Psychosis
Published on: November 21, 2013
Psychiatric diagnosis and aggression before acute hospitalisation
A Colasanti1, A Natoli, D Moliterno
1Clinical Psychiatry, Guardia II, University of Milan, Clinical Neuropsychopharmacology Unit, Fondazione IRCCS Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Via F. Sforza 35, 20122 Milan, Italy.
Aggressive behaviors before psychiatric hospitalization are common. Predictors include drug abuse, involuntary admission, severe psychopathology, and personality disorders, not psychotic disorders.
Area of Science:
- Psychiatry
- Clinical Psychology
- Criminology
Background:
- Aggressive behaviors are a significant concern in psychiatric settings.
- Understanding predictors of pre-hospitalization aggression is crucial for patient management and safety.
Purpose of the Study:
- To identify key predictors of aggressive behaviors in patients admitted to psychiatric wards.
- To differentiate the predictive value of various clinical and demographic factors.
Main Methods:
- Retrospective analysis of 350 psychiatric admissions over 12 months.
- Assessment of aggression using the modified overt aggression scale.
- Collection of clinical, sociodemographic, substance abuse, and admission status data.
Main Results:
- High prevalence of aggressive (45%) and violent (33%) behaviors before admission.
- Independent predictors of violence included drug abuse, involuntary admission, and severe psychopathology.
- Personality disorders were more strongly associated with aggression than psychotic disorders.
Conclusions:
- Psychotic disorder diagnosis is not a reliable predictor of aggression.
- Drug abuse, involuntary admission, symptom severity, and personality disorders are significant predictors of pre-hospitalization aggression.
Related Concept Videos
Psychosis: Goals of Pharmacotherapy
Conduct Disorder
Psychosis and Antipsychotic Drugs: Overview
Diagnostic and Statistical Manual of Mental Disorders (DSM)
Aggression
Psychological and Sociocultural Causes of Schizophrenia
