Family history may link schizophrenia and ASD

The authors conducted a case-control evaluation of histories of the disorders in first-degree relatives of patients who met the criteria for ASD in three cohorts from Sweden and Israel. Men dominated the samples with 69%, 72% and 86% representation respectively.

Schizophrenia in parents was associated with an increased risk of ASD in the Swedish groups.

Having a sibling with the disorder was associated with an increased risk in one of the Swedish groups and the Israeli group.

Bipolar disorder showed a similar pattern of association but of a

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