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Depression and violent crime: is there a relationship?
  1. Andréa Tenório Correia da Silva,
  2. Paulo Rossi Menezes
  1. Department of Preventive Medicine, University of São Paulo, São Paulo, Brazil
  1. Correspondence to Dr Andréa Tenório Correia da Silva, andreatenorio{at}usp.br

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ABSTRACT FROM: Fazel S, Wolf A, Change Z, et al. Depression and violence: a Swedish population study. Lancet Psychiatry 2015;2:224–32.

What is already known on this topic

Major mental disorders, such as schizophrenia and personality disorder, have been associated with a higher risk of committing violent crime.1 However, the relationship between depression and violent crime is still unclear. Interestingly, some authors have recently presented evidence that this relationship occurs in the opposite direction: individuals with major depression present a higher risk of having homicidal death. For instance, in Sweden, a nationwide cohort found an increased risk of homicidal death in individuals with major depression than in general population (HR=2.61; 95% CI 1.58 to 4.33).2

Methods of the study

To clarify this issue, Fazel et al performed two longitudinal studies. In the first study, outpatients with at least two episodes of major depression, according to the International Statistical Classification of Diseases and Related Health Problems 10th Revision (ICD-10), were identified from the National …

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