Obstetric Complications, the Putative Familial-Sporadic Distinction, and Tardive Dyskinesia in Schizophrenia

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Abstract
Obstetric complications were more common in the histories of those schizophrenic outpatients without a family history of psychiatric disorder, and were associated with an earlier onset of their illness. Those patients with tardive dyskinesia were more likely to have a family history of psychiatric disorder, less likely to have experienced obstetric complications, and showed greater cognitive deficit. Obstetric complications should be considered in juxtaposition with genetic factors in evaluating the putative familial-sporadic distinction in schizophrenia. Additionally, familial/genetic factors appear to contribute to vulnerability to tardive dyskinesia.