Cross-National Study of Diagnosis of the Mental Disorders: Some Comparisons of Diagnostic Criteria from the First Investigation

A sample of patients from a New York and a London mental hospital were compared so as to point out any differences between the two hospitals in the criteria associated with a hospital diagnosis of either schizophrenia or affective illness. Groups of patients with similar psychopathology tended to receive similar diagnoses, but a subgroup with marked mood disturbance and little disorganization tended to be called schizophrenic by the New York hospital staff and affectively ill by the London hospital staff.