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Contribution of the Six-Month Criterion to the Predictive Validity of the DSM-III Definition of Schizophrenia

Contribution of the Six-Month Criterion to the Predictive Validity of the DSM-III Definition of... Abstract • To test the contribution of the criterion of six months of illness to the predictive usefulness of the DSM-III diagnosis of schizophrenia, we compared, from a sample of 121 patients with functional psychosis, those who had been ill for six months or more at index but did not meet the nontemporal DSM-III criteria and those who met the full criteria. We found that while the six-month criterion is an important component, it is not the sole reason for the predictive power of these criteria. Many who met only this criterion had relatively good outcomes, and, as a group, their outcomes were only slightly worse than for the entire series of psychotic patients. Those who met the full criteria had a significantly poorer outcome in terms of both continued psychopathology and social functioning. References 1. Pope HG Jr, Lipinski JF Jr: Diagnosis in schizophrenia and manicdepressive illness: A reassessment of the specificity of 'schizophrenic' symptoms in the light of current research . Arch Gen Psychiatry 1978;34:811-828.Crossref 2. Helzer JE, Brockington IF, Kendell RE: Predictive validity of DSM-III and Feighner definitions of schizophrenia . Arch Gen Psychiatry 1981;38:791-797.Crossref 3. Fenton WS: Definitions of schizophrenia . Arch Gen Psychiatry 1982;39:357.Crossref 4. Brockington IF, Kendell RE, Leff JP: Definitions of schizophrenia: Concordance and prediction of outcome . Psychol Med 1978;8:387-398.Crossref 5. Cooper JE, Kendell RE, Gurland BJ, Sharp L, Copeland JRM, Simon R: Psychiatric Diagnosis in New York and London . New York, Oxford University Press, 1972. 6. Wing JK, Cooper JE, Sartorius N: The Measurement and Classification of Psychiatric Symptoms . London, Cambridge University Press, 1974. 7. American Psychiatric Association, Committee on Nomenclature and Statistics: Diagnostic and Statistical Manual of Mental Disorders, ed 3. Washington, DC, American Psychiatric Association, 1980. 8. Feighner JP, Robins E, Guze SB, Woodruff RA, Winokur G, Munoz R: Diagnostic criteria for use in psychiatric research . Arch Gen Psychiatry 1972;26:57-63.Crossref 9. Spitzer RL, Endicott J, Robins E: Research Diagnostic Criteria . New York, Biometrics Research Division, New York State Psychiatric Institute, 1975. 10. Rose AS, Ellison GW, Myers LW, Tourtellotte WW: Criteria for the clinical diagnosis of multiple sclerosis . Neurology 1976;26( (suppl) ):20-22.Crossref 11. Tsuang MT, Woolson RF, Fleming JA: Long-term outcome of major psychoses: I. Schizophrenia and affective disorders compared with psychiatrically symptom-free surgical conditions . Arch Gen Psychiatry 1979;36:1295-1301.Crossref http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of General Psychiatry American Medical Association

Contribution of the Six-Month Criterion to the Predictive Validity of the DSM-III Definition of Schizophrenia

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Publisher
American Medical Association
Copyright
Copyright © 1983 American Medical Association. All Rights Reserved.
ISSN
0003-990X
eISSN
1598-3636
DOI
10.1001/archpsyc.1983.01790110019004
Publisher site
See Article on Publisher Site

Abstract

Abstract • To test the contribution of the criterion of six months of illness to the predictive usefulness of the DSM-III diagnosis of schizophrenia, we compared, from a sample of 121 patients with functional psychosis, those who had been ill for six months or more at index but did not meet the nontemporal DSM-III criteria and those who met the full criteria. We found that while the six-month criterion is an important component, it is not the sole reason for the predictive power of these criteria. Many who met only this criterion had relatively good outcomes, and, as a group, their outcomes were only slightly worse than for the entire series of psychotic patients. Those who met the full criteria had a significantly poorer outcome in terms of both continued psychopathology and social functioning. References 1. Pope HG Jr, Lipinski JF Jr: Diagnosis in schizophrenia and manicdepressive illness: A reassessment of the specificity of 'schizophrenic' symptoms in the light of current research . Arch Gen Psychiatry 1978;34:811-828.Crossref 2. Helzer JE, Brockington IF, Kendell RE: Predictive validity of DSM-III and Feighner definitions of schizophrenia . Arch Gen Psychiatry 1981;38:791-797.Crossref 3. Fenton WS: Definitions of schizophrenia . Arch Gen Psychiatry 1982;39:357.Crossref 4. Brockington IF, Kendell RE, Leff JP: Definitions of schizophrenia: Concordance and prediction of outcome . Psychol Med 1978;8:387-398.Crossref 5. Cooper JE, Kendell RE, Gurland BJ, Sharp L, Copeland JRM, Simon R: Psychiatric Diagnosis in New York and London . New York, Oxford University Press, 1972. 6. Wing JK, Cooper JE, Sartorius N: The Measurement and Classification of Psychiatric Symptoms . London, Cambridge University Press, 1974. 7. American Psychiatric Association, Committee on Nomenclature and Statistics: Diagnostic and Statistical Manual of Mental Disorders, ed 3. Washington, DC, American Psychiatric Association, 1980. 8. Feighner JP, Robins E, Guze SB, Woodruff RA, Winokur G, Munoz R: Diagnostic criteria for use in psychiatric research . Arch Gen Psychiatry 1972;26:57-63.Crossref 9. Spitzer RL, Endicott J, Robins E: Research Diagnostic Criteria . New York, Biometrics Research Division, New York State Psychiatric Institute, 1975. 10. Rose AS, Ellison GW, Myers LW, Tourtellotte WW: Criteria for the clinical diagnosis of multiple sclerosis . Neurology 1976;26( (suppl) ):20-22.Crossref 11. Tsuang MT, Woolson RF, Fleming JA: Long-term outcome of major psychoses: I. Schizophrenia and affective disorders compared with psychiatrically symptom-free surgical conditions . Arch Gen Psychiatry 1979;36:1295-1301.Crossref

Journal

Archives of General Psychiatry – American Medical Association

Published: Dec 1, 1983

References

  • Diagnosis in schizophrenia and manicdepressive illness: A reassessment of the specificity of 'schizophrenic' symptoms in the light of current research
    Pope HG Jr, Lipinski JF Jr
  • Predictive validity of DSM-III and Feighner definitions of schizophrenia
    Helzer JE, Brockington IF, Kendell RE
  • Definitions of schizophrenia
    Fenton WS
  • Definitions of schizophrenia: Concordance and prediction of outcome
    Brockington IF, Kendell RE, Leff JP
  • Psychiatric Diagnosis in New York and London
    Cooper JE, Kendell RE, Gurland BJ, Sharp L, Copeland JRM, Simon R
  • The Measurement and Classification of Psychiatric Symptoms
    Wing JK, Cooper JE, Sartorius N
  • Diagnostic criteria for use in psychiatric research
    Feighner JP, Robins E, Guze SB, Woodruff RA, Winokur G, Munoz R
  • Research Diagnostic Criteria
    Spitzer RL, Endicott J, Robins E
  • Criteria for the clinical diagnosis of multiple sclerosis
    Rose AS, Ellison GW, Myers LW, Tourtellotte WW
  • Long-term outcome of major psychoses: I. Schizophrenia and affective disorders compared with psychiatrically symptom-free surgical conditions
    Tsuang MT, Woolson RF, Fleming JA