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Obstetric complications and schizophrenia: Two case–control studies based on structured obstetric records

  • R. E. Kendell (a1), K. McInneny (a2), E. Juszczak (a2) and M. Bain (a2)
Abstract
Background

Most previous case–control studies of obstetric complications in schizophrenia have been small scale and many have relied on retrospective information.

Aims

To determine which obstetric complications are more common in probands with schizophrenia than matched controls.

Method

Two hundred and ninety-six probands with an in-patient diagnosis of schizophrenia who had been born in Scotland in 1971–74, and a further 156 born in 1975–78, were closely matched with controls and the incidence of obstetric complications in the two compared using obstetric data recorded in a set format shortly after birth.

Results

Not a single complication of pregnancy or delivery was significantly more common in the probands with schizophrenia than the controls in the 1971–74 birth cohort and only emergency Caesarean section and labour lasting over 12 hours were significantly more common in the schizophrenia probands in the 1975–78 cohort.

Conclusion

The evidence that schizophrenia is associated with a raised incidence of obstetric complications is weaker than has recently been assumed.

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Copyright
Corresponding author
Dr R. E. Kendell, 3 West Castle Road, Edinburgh EH10 5AT
Footnotes
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See pp. 523–530, this issue.

Declaration of interest

Funded by the Scottish Office Department of Health.

Footnotes
References
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Verdoux, H., Geddes, J. R., Takei, N., et al (1997) Obstetric complications and age at onset in schizophrenia: an international collaborative meta-analysis of individual patient data. American Journal of Psychiatry, 154, 12201227.
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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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Obstetric complications and schizophrenia: Two case–control studies based on structured obstetric records

  • R. E. Kendell (a1), K. McInneny (a2), E. Juszczak (a2) and M. Bain (a2)
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