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[Decrease of catatonic schizophrenia in patients hospitalized in 1984 in comparison to 1964].

H Silva1, S Jerez, M Catenacci

  • 1Clínica Psiquiátrica, Universidad de Chile y Escuela de Medicina, Universidad Católica de Chile.

Acta Psiquiatrica Y Psicologica De America Latina
|July 1, 1989
PubMed
Summary

Catatonic schizophrenia prevalence and symptoms have decreased over time, according to a Chilean study. This decline was observed between 1964 and 1984, indicating a shift in mental illness manifestations.

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Epidemiology

Context:

  • The study examines changes in mental illness presentation over decades.
  • Catatonia in schizophrenia was once common but is now rarely observed.
  • Clinical records from a Chilean psychiatric clinic were analyzed.

Purpose:

  • To analyze changes in catatonic schizophrenia prevalence and symptoms.
  • To compare data from 1964 and 1984 to identify trends.
  • To investigate the relationship between symptom variation and pre-institutionalization duration.

Summary:

  • A significant diminution in catatonic schizophrenia forms was observed between 1964 and 1984.
  • Associated catatonic symptoms, indicative of severe schizophrenia, also showed a noticeable decrease.

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  • No correlation was found between these variations and the duration of illness before institutionalization.

    • Impact:

    • Suggests a potential decline in the incidence of severe schizophrenia subtypes.
    • Highlights the importance of longitudinal studies in understanding evolving mental illness patterns.
    • Provides valuable data for psychiatric nosology and treatment strategy development.