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Predictors for attacks on people after deinstitutionalization
1Section for Forensic Psychiatry, Brøset, and Department of Psychiatry and Behavioural Medicine, Norwegian University of Science and Technology, Trondheim, Norway. stps-broset@pst.fylkeskom.st.no
Deinstitutionalization increased aggression in some individuals with intellectual disability (ID). Self-injurious behavior and caretaker-assessed need for help predicted aggression post-transition, but no clear preventive interventions were found.
Area of Science:
- Intellectual Disability Research
- Behavioral Psychology
- Public Health Policy
Background:
- Deinstitutionalization is expanding in Europe, but its impact on behavior disturbances in individuals with intellectual disability (ID) remains unclear.
- Aggressive behavior is prevalent in both institutional and community settings for individuals with ID.
- This study focuses on individuals who developed aggressive behaviors after transitioning from institutional care.
Purpose of the Study:
- To identify individual and environmental predictors of aggression development following deinstitutionalization.
- To explore potential intervention points for preventing aggression in this population.
Main Methods:
- A cohort study comparing individuals who developed aggression post-deinstitutionalization (Group A) with a control group (Group B).
- Assessment of individual characteristics (mental health, behavior disturbances) and environmental factors (caretaker education, housing) before and after deinstitutionalization.
- Utilized the Psychopathology Instrument for Mentally Retarded Adults (PIMRA) for caretaker evaluations.
Main Results:
- Group A exhibited significantly more self-injurious behavior (SIB) and overall behavior disturbances prior to deinstitutionalization compared to Group B.
- Individuals in Group A had lower PIMRA soundness scores and higher caretaker-assessed needs for help due to behavioral and mental health issues.
- No significant differences were found in etiology of ID or behavior deficits between groups in the baseline year.
Conclusions:
- Self-injurious behavior, a moderate burden of other behavioral problems, and low PIMRA soundness scores were individual predictors of developing aggression post-deinstitutionalization.
- Caretaker perception of the need for help due to behavioral and mental health issues emerged as the sole environmental predictor.
- The study did not identify clear individual or environmental preventive intervention points, highlighting the need for further research.
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