Importance of schizophrenic symptoms in the diagnosis of mania

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Abstract
A sample of 111 consecutively admitted patients who satisfied inclusion criteria for mania was examined and characterized as exhibiting none, 1 or 2 or more of 5 clinical features often believed to be associated with a diagnosis of schizophrenia: formal thought disorder, 1st-rank symptoms, auditory hallucinations, persecutory delusions and catatonia. The presence and number of such symptoms were unrelated to any of the major demographic, clinical, historical, laboratory or familial variables studied. Schizophrenic symptoms do not play an important role in patients who satisfy modern criteria for the diagnosis of mania.