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Child and Adolescent (Juvenile Onset) Schizophrenia: A case control study of premorbid developmental impairments

  • Chris Hollis (a1)
Abstract
Background

The study tests the hypothesis that juvenile-onset schizophrenia is associated with premorbid developmental impairments. It was predicted that the pattern of developmental impairments would vary with age of onset and with gender.

Method

A case-control design was used to examine developmental impairments in 61 consecutive juvenile-onset (age 7–17) referrals with ICD-9 schizophrenia; 61 non-psychotic psychiatric controls were matched on age and gender. Cases and controls were divided into childhood-onset (age 7–13) and adolescent-onset (age 14–17).

Results

The schizophrenic cases had a significantly higher risk of premorbid social (χ2 = 9.1, P<0.005), motor (χ2 = 9.1, P<0.005) and language impairments (χ2 = 10.1, P<0.005). Specific impairments of language production and comprehension were associated with childhood-onset schizophrenia and were independent of gender.

Conclusions

Juvenile-onset schizophrenia is associated with a range of developmental antecedents. There may be a specific link between cases with a very early onset and an impairment in the processes underlying the development of language.

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Copyright
References
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The British Journal of Psychiatry
  • ISSN: 0007-1250
  • EISSN: 1472-1465
  • URL: /core/journals/the-british-journal-of-psychiatry
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Child and Adolescent (Juvenile Onset) Schizophrenia: A case control study of premorbid developmental impairments

  • Chris Hollis (a1)
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