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Psychiatry Res. 2012 Jun 30;198(1):12-7. doi: 10.1016/j.psychres.2012.01.016. Epub 2012 Mar 14.

Is autism spectrum disorder common in schizophrenia?

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1
Department of Child and Adolescent Psychiatry, Central Hospital, 651 85 Karlstad, Sweden. maria.hallerback@liv.se

Abstract

A century ago, Kraepelin and Bleuler observed that schizophrenia is often antedated by "premorbid" abnormalities. In this study we explore how the childhood neurodevelopmental problems found in patients with schizophrenia relate to the current concept of autism spectrum disorder (ASD). Forty-six young adult individuals with clinical diagnoses of schizophrenic psychotic disorders were assessed. The Structured Clinical Interview for DSM Disorders (SCID-I) was used in face-to-face psychiatric examination of each individual. In 32 of the 46 cases (70%), collateral information was provided by one or both parents. The Diagnostic Interview for Social and Communication Disorders - eleventh version (DISCO-11) was used when interviewing these relatives. This instrument covers, in considerable depth, childhood development, adaptive functioning, and symptoms of ASD - current and lifetime. There is a strict algorithm for ASD diagnosis. About half of the cases with schizophrenic psychosis had ASD according to the results of the parental interview. The rate of ASD was strikingly high (60%) in the group with a SCID-I diagnosis of schizophrenia paranoid type. The findings underscore the need to revisit the DSM's "either or" stance between ASD and schizophrenia.

PMID:
22421071
DOI:
10.1016/j.psychres.2012.01.016
[Indexed for MEDLINE]
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