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Course and outcome in paranoid disorders.
1Department of Psychiatry, University of Oslo, Norway.
Psychopathology
|January 1, 1991
Summary
Long-term follow-up of paranoid psychosis patients reveals diagnostic category significantly impacts outcome. While many recover, schizophrenia patients consistently show poorer results compared to affective disorders.
Area of Science:
- Psychiatry
- Psychology
Background:
- Paranoid psychoses represent a spectrum of mental health conditions with varying prognoses.
- Understanding long-term outcomes is crucial for effective treatment and patient management.
Purpose of the Study:
- To investigate the long-term course and outcome of paranoid psychoses.
- To compare outcomes based on different diagnostic classifications (Scandinavian tradition vs. DSM-III).
Main Methods:
- Longitudinal follow-up study of consecutively admitted patients with paranoid psychoses.
- Two follow-up periods: 5-18 years and 22-39 years post-admission.
- Assessment of psychotic symptoms and clinical/social outcomes.
Main Results:
- At first follow-up (5-18 years), 65% of patients were symptom-free; at the last follow-up (22-39 years), 44% were symptom-free.
- Scandinavian diagnostics: Reactive psychoses had good outcomes, schizophrenia had poor outcomes, schizophreniform in between.
- DSM-III diagnostics: Affective/schizoaffective disorders had best outcomes, schizophrenia worst.
Conclusions:
- Diagnostic category is the primary determinant of course and outcome in paranoid psychoses, not the specific delusion type.
- Long-term recovery rates vary significantly across diagnostic classifications.
- Schizophrenia consistently shows the poorest long-term prognosis among paranoid psychoses.