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Am J Psychiatry. 1996 Apr;153(4):533-7.

Problem of diagnosis in postmortem brain studies of schizophrenia.

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1
National Health and Medical Research Council Network for Brain Research into Mental Disorders, Mental Health Research Institute of Victoria, Australia.

Abstract

OBJECTIVE:

The purpose of this study was to determine 1) the reliability of diagnoses of schizophrenia at coronal autopsy and 2) the degree to which the use of different diagnostic instruments for schizophrenia would affect postmortem brain research.

METHOD:

Eighty-three subjects, recorded at coronal autopsy as having had schizophrenia, were referred for neurochemistry studies. The diagnoses reported to the state coroner's office were reevaluated by a review of psychiatric case histories by clinicians using semistructured assessment and diagnostic criteria.

RESULTS:

The application of DSM-III-R, Research Diagnostic Criteria (RDC), ICD-10, Schneiderian, and Feighner criteria to the diagnosis of the 83 subjects revealed that 63.9%, 48.2%, 48,2%, 43.4%, and 42.2%, respectively, met the criteria for schizophrenia. Highest concordance was between the RDC and ICD-10 systems, while lowest concordance was between the RDC and Schneider systems.

CONCLUSIONS:

These data suggest that unless carefully reviewed, diagnosis may be a major confounding factor in postmortem studies of brain tissue from subjects with schizophrenia.

PMID:
8599402
DOI:
10.1176/ajp.153.4.533
[Indexed for MEDLINE]
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