Unipolar and bipolar schizoaffective disorders: A comparative study

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Abstract
Seventy-two schizoaffective patients were investigated longitudinally (mean follow-up period 25.6 years). Unipolar (n = 37) and bipolar (n = 35) schizoaffectives were compared. Relevant differences in sociodemographic variables were found between the two groups, especially in: (a) sex distribution (more females among unipolar schizoaffectives), (b) social class, (c) occupational and educational level (higher in bipolars), and (d) premorbid personality (obsessoid and low-self-confidence personality types were more frequent in unipolars). Surprisingly there was no difference in age of onset, but some factors were identified that elevated the age of onset in bipolar and reduced it in unipolar schizoaffectives, which may explain this finding. Among bipolars there were more frequent relapses, but there was more suicidal symptomatology in unipolars. No differences were found with regard to long-term outcome, i.e. disability (Disability Assessment Schedule), level of functioning (Global Assessment Scale) or psychopathology at follow up.

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