Schizophrenia: a comparative study of patients with and without family history

To test the hypothesis that schizophrenia can be differentiated on the basis of family history, the authors compared two matched samples of 20 patients each, distinguished by the presence or absence of family history of schizophrenia. Family history was not associated with either onset characteristics, symptom picture, phenomenological subtypes of schizophrenia, prognostic indicators or global assessment score for psychosocial functioning.