0
Article |

Diagnosis and Prognosis in Schizophrenia

C. Robert Cloninger, MD; Ronald L. Martin, MD; Samuel B. Guze, MD; Paula J. Clayton, MD
Arch Gen Psychiatry. 1985;42(1):15-25. doi:10.1001/archpsyc.1985.01790240017002.
Text Size: A A A
Published online

• We showed that schizophrenia was a discrete disorder by using a quantitative clinical scale that discriminated schizophrenics from other subjects in a prospective follow-up and family study of 500 psychiatric outpatients. Four symptoms tended to occur together as a stable syndrome throughout the six- to 12-year follow-up: persecutory delusions, delusions of control, firmly fixed mood-incongruent delusions, and auditory hallucinations. Scale scores were computed as the number of these four symptoms that was present less one if there was a history of spending sprees with marked elation. More than 68% of the schizophrenics and fewer than 2% of nonschizophrenics had scores of +2 or greater. The distribution of scores was bimodal: persons with scores of +1 were relatively rare. Also, there was familial resemblance for the presence or absence of schizophrenia, but no additional resemblance for the number of schizophrenic symptoms. Despite this relative discreteness, scale scores were valuable for quantifying the certainty of diagnosis and predicting outcome.

Topics

Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

Figures

Tables

References

Correspondence

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).
Submit a Comment

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();