Older men are more likely than younger men to father children with autism, schizophrenia, or early-onset bipolar disorder.
Fathering a child later in life seems to increase its risk of having autism or schizophrenia, research has shown. And now it seems to increase a child's risk of having bipolar disorder as well, a new study suggests.
The study was headed by Emma Frans, a doctoral student in epidemiology at the Karolinska Institute in Stockholm. Results were published in the September Archives of General Psychiatry.
Sweden's Multigeneration Register, as well as Sweden's National Hospital Discharge Register, made this new investigation possible. The former, which has been in existence since 1947, gives demographic information about all people living in Sweden as well as about their parents. The latter, which has been in existence since 1973, lists all people living in Sweden who have been hospitalized for various conditions.
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