CHICAGO Older fathers may face higher risks than previously thought for having children with psychiatric problems.
The largest study to examine the potential link lists problems including bipolar disorder, autism and attention deficits.
American and Swedish researchers examined data on more than 2 million Swedes born from 1973-2001. Men who fathered kids after age 24 faced increasing odds for having children with psychiatric problems or academic difficulties, with the greatest risks seen at age 45 and older.
The results add to evidence challenging the notion that men's sperm are timeless, but this kind of research isn't proof. Most kids of older dads did fine.
The study was published online Wednesday in JAMA Psychiatry.
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