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Neurotic depression and DSM-III.

S Torgersen

    Acta Psychiatrica Scandinavica. Supplementum
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    The removal of neurosis diagnoses led to a redistribution of cases. Major depression in the DSM-III appears as heterogeneous as the prior ICD-9 neurotic depression diagnosis.

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    Area of Science:

    • Psychiatry
    • Mental Health Diagnostics
    • Clinical Psychology

    Background:

    • The concept of neurosis has been removed from the American diagnostic system.
    • This study examines the diagnostic implications of removing 'neurosis' and its impact on depression classifications.

    Purpose of the Study:

    • To analyze the distribution of cases previously diagnosed with neurotic depression (ICD-9) into current DSM-III diagnostic categories.
    • To investigate the diagnostic consistency of unipolar depressive disorders within the DSM-III framework using twin study data.

    Main Methods:

    • Analysis of case distribution from ICD-9 'neurotic depression' to DSM-III diagnoses.
    • Presentation of twin study results to assess diagnostic concordance for unipolar depression.

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    Main Results:

    • Cases diagnosed as neurotic depression (ICD-9) were distributed among DSM-III diagnoses: 50% major depression, 20% dysthymic disorder, 20% depressive adjustment disorder.
    • Twin study data revealed significant diagnostic discrepancies among cotwins for unipolar depressive disorders, indicating heterogeneity.

    Conclusions:

    • The heterogeneous ICD-9 diagnosis of neurotic depression appears to have been replaced by an equally heterogeneous DSM-III diagnosis of major depression.
    • Diagnostic categories for unipolar depression require further refinement to improve clinical utility and consistency.