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[Late schizophrenia (author's transl)].

G Huber, G Gross, R Schüttler

    Archiv Fur Psychiatrie Und Nervenkrankheiten
    |December 23, 1975
    PubMed
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    Late schizophrenia, defined as onset after age 40, affects 17.1% of cases. This form of schizophrenia shows a better prognosis and higher social reintegration rates compared to early-onset schizophrenia.

    Area of Science:

    • Psychiatry and Neurology
    • Clinical Psychology
    • Epidemiology of Mental Disorders

    Background:

    • The study investigates "late schizophrenia," a subtype characterized by onset after age 40, referencing M. Bleuler's work.
    • Analysis of 644 schizophrenia cases admitted between 1945-1959 at the University of Bonn, with a follow-up period averaging 17.8 years.

    Observation:

    • Late schizophrenia accounted for 17.1% of all cases, with onset peaks between ages 40-44 and 45-59.
    • Prodromal signs were observed in 42.8% of cases, with a female predominance (64.3%).
    • Syntonic personalities were more frequent, while psychopathic personalities were less common compared to early-onset schizophrenia.

    Findings:

    • No significant differences were found in premorbid intelligence or heritability.

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  • Late-onset schizophrenia presented with a higher incidence of paranoid-hallucinatory (55.4%) and paranoid (23.2%) syndromes.
  • Prognosis was more favorable, particularly for women, with a 30% full remission rate and higher social reintegration (64.3%).

    • Implications:

    • Late schizophrenia shares fundamental characteristics with other forms, suggesting similar therapeutic and rehabilitation principles.
    • The distinct clinical presentation and better prognosis warrant specific consideration in diagnostic and treatment strategies.
    • Findings challenge previous assumptions and highlight the need for continued research into late-onset psychiatric disorders.