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Related Experiment Videos

Low birth weight and schizophrenia

L Rifkin1, S Lewis, P Jones

  • 1Genetics Section, Institute of Psychiatry, London.

The British Journal of Psychiatry : the Journal of Mental Science
|September 1, 1994
PubMed
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Low birth weight is linked to schizophrenia. Lower birth weight in men with schizophrenia correlates with poorer cognitive function and social adjustment, suggesting neurodevelopmental issues.

Area of Science:

  • Psychiatry
  • Neuroscience
  • Developmental Psychology

Background:

  • Low birth weight has been theorized as a potential risk factor for developing schizophrenia.
  • Understanding early life factors is crucial for schizophrenia etiology.

Purpose of the Study:

  • To investigate the association between birth weight and schizophrenia.
  • To examine the relationship between birth weight, premorbid adjustment, and cognitive function in schizophrenia patients.

Main Methods:

  • Assessed obstetric history, premorbid adjustment, and cognitive function in 167 patients diagnosed with DSM-III schizophrenia or affective psychosis.
  • Compared birth weights between schizophrenia patients and those with affective psychosis.
  • Analyzed correlations between birth weight and premorbid/adult cognitive function in male schizophrenic patients.

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Main Results:

  • Patients with schizophrenia had a significantly higher incidence of birth weight below 2500g compared to affective psychosis patients.
  • Schizophrenia patients exhibited significantly lower mean birth weights, even after accounting for sociodemographic factors.
  • In male schizophrenic patients, lower birth weight strongly correlated with poorer premorbid social and cognitive abilities, and impaired adult cognitive function.

Conclusions:

  • Findings suggest a link between reduced fetal growth and the development of schizophrenia.
  • Neurodevelopmental impairments may underlie both poor fetal growth and adult-onset schizophrenia.