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  • Title: Premorbid functioning, cognitive functioning, symptoms and outcome in schizophrenia.
    Author: Addington J, Addington D.
    Journal: J Psychiatry Neurosci; 1993 Jan; 18(1):18-23. PubMed ID: 8461276.
    Abstract:
    In this study we examined the relationship between premorbid functioning, outcome, cognitive functioning and positive and negative symptoms of schizophrenia. Cognitive functioning and symptoms were examined longitudinally in a sample of 39 subjects with schizophrenia (according to the DSM-III criteria). Subjects were assessed at admission to hospital and six months later during a period of relative remission. Premorbid functioning was significantly associated with negative symptoms but not with positive symptoms at both the acute phase and the remitted phase of the illness. Outcome was also associated with negative symptoms at admission and with both positive and negative symptoms at follow-up. Deficits on cognitive tests of verbal reasoning and concept formation were significantly associated with poor premorbid functioning and outcome.
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