Emma O’Neill summarises a systematic review and meta-analysis of the incidence of psychotic disorders, which looks at the distribution of rates and the influence of gender, urbanicity, immigration and socio-economic level.
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Mina Fazel considers the findings of a new Swedish cohort study, which looks at the risk of schizophrenia and other non-affective psychoses in refugee migrants and non-refugee migrants from across three continents.
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Marcus Munafò looks at the mounting evidence about smoking and risk of schizophrenia, including a new case-control study that provides clear evidence of a prospective association between cigarette smoking and a subsequent diagnosis of schizophrenia.
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