Diagnosing schizophrenia in 1980: a survey of U.S. psychiatrists

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Abstract
Questionnaires (1227) to USA psychiatrists at the time of the introduction of DSM-III [Diagnostic and Statistical Manual of Mental Disorders-III] to ascertain their diagnostic approach to schizophrenia; 25% (N = 301) of the questionnaires were returned. Only 4 symptom categories reached a 50% accordance level, and there was little agreement on combinations of signs or symptoms, including that recommended by DSM-III. A cluster analysis showed some overall patterns: younger respondents and those from the Pacific coast diagnosed more closely to DSM-III; older respondents gave more individualistic responses. Research separating schizophrenia from other disorders that are far more effectively treated may not have had a substantial effect on the diagnostic practices of USA psychiatrists.

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