Author:
Van Os Jim,Selten Jean-Paul
Abstract
BackgroundIt has been suggested that prenatal exposure to maternal stress increases the risk of subsequently developing schizophrenia.MethodThe five-day invasion and defeat of The Netherlands by the German army in May 1940 constituted a severe, well-circumscribed national stressful event. Individuals exposed and non-exposed to this stressor in the first, second and third trimester of pregnancy were followed up for lifetime schizophrenia outcome through the National Psychiatric Case Register.RegisterCumulative incidence of schizophrenia was higher in the exposed cohort (risk ratio (RR): 1.15, 95% CI: 1.03–1.28), especially in those exposed in the first trimester (RR: 1.28, 95% CI: 1.07–1.53). Significant interaction with gender was apparent in second trimester exposed cohorts (RR men: 1.35, 95% CI: 1.05–1.74; RR women: 0.83, 95% CI: 0.61–1.12).ConclusionMaternal stress during pregnancy may contribute to the development of vulnerability to schizophrenia. The apparent longer window of exposure in male foetuses may be related to the slower pace of male early cerebral development.
Publisher
Royal College of Psychiatrists
Subject
Psychiatry and Mental health
Cited by
406 articles.
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