Older dads boost risk of psych problems in kids: Study
WASHINGTON (AFP) - A massive study of more than two million people in Sweden has found that those with older dads faced a higher risk of psychiatric problems, autism and attention disorders, researchers said on Wednesday.
Compared to people whose fathers were between the ages of 20 and 24 at the time of their birth, those with dads 45 or older were 25 times more likely to have bipolar disorder, said the findings in Jama Psychiatry, a journal of the American Medical Association.
The study found people born to older dads also were 13 times more likely to have attention deficit hyperactivity disorder.
The research adds to a growing body of science on the negative effects of delayed procreation in men, an area that has traditionally focused on the risks to women and their offspring.