Author:
Cantor-Graae Elizabeth,Pedersen Carsten Bøcker,Mcneil Thomas F.,Mortensen Preben Bo
Abstract
BackgroundA growing body of evidence suggests that migration is a risk factor for the development of schizophrenia, although the putative mechanism remains obscure.AimsTo examine immigrant background and history of foreign residence as risk factors for schizophrenia.MethodUsing data from the Danish Civil Registration System, we established a population-based cohort of 2.14 million persons resident in Denmark by their fifteenth birthday. Schizophrenia in cohort members and parental psychiatric disorder were identified by cross-linkage with the Danish Psychiatric Case Register.ResultsThe relative risk of developing schizophrenia was 2.45 (95% CI 2.25–2.67) and 1.92 (95% CI 1.74–2.12) among first- and second-generation immigrants respectively, and 1.60 (95% CI 1.25–2.05) among Danes with a history of foreign residence.ConclusionsMigration confers an increased risk for schizophrenia that is not solely attributable to selection factors and may also be independent of foreign birth.
Publisher
Royal College of Psychiatrists
Subject
Psychiatry and Mental health
Cited by
143 articles.
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