• Sweden edition
 
Older dads linked to kids with mental health woes

Older dads linked to kids with mental health woes

Published: 27 Feb 2014 07:48 GMT+01:00
Updated: 27 Feb 2014 07:48 GMT+01:00

 
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 thecAmerican 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.
   
"We were shocked by the findings," said Brian D'Onofrio, lead author and associate professor in the Department of Psychological and Brain Sciences in the College of Arts and Sciences at Indiana University, Bloomington.
   
"The specific associations with paternal age were much, much larger than in previous studies," said D'Onofrio, who collaborated with researchers at Karolinska Institute in Stockholm.
   
The size of the data set -- 2.6 million people -- accounted for every person born in Sweden from 1973 until 2001.
   
Older paternal age was linked to a greater likelihood of schizophrenia, suicide attempts and substance abuse problems in offspring, as well as failing grades and lower IQ scores.
   
Children of dads aged 45 or older also were 3.5 times more likely to have autism and 2.5 times more likely to have suicidal behavior or a substance abuse problem than those born to dads aged 24 and under.
   
The likelihood of having one or more of the problems increased steadily with the age of the father, signaling that there was no age threshold which suddenly posed new risks.
   
And by comparing siblings, researchers found associations with advancing paternal age far higher than in the general population.
   
Scientists made allowances for the effects of higher income, common in older men and a factor which should negate some hardships of growing up, but found the strong associations remained.
   
'Informative' findings
   
"The findings in this study are more informative than many previous studies," D'Onofrio said.
   
"First, we had the largest sample size for a study on paternal age. Second, we predicted numerous psychiatric and academic problems that are associated with significant impairment."
   
Women have long been counseled that their egg supply is constantly diminishing, while men are making new sperm well into old age.
   
Researchers now know that DNA mutations can happen each time sperm replicate. As men age, they are exposed to more environmental toxins that can lead to DNA changes in sperm.
   
Nevertheless, women and men over the past 40 years increasingly have delayed childbirth.
   
The average age of first-time mothers in the United States was 21.5 in 1970 and by 2011 it was 25.6, according to Centers for Disease Control and Prevention data.
   
Men tend to be about three years older on average, according to Indiana University researchers.

Your comments about this article

Today's headlines
Science
Swedish women in two-year sex pill study
Contraceptive pills have been linked to mood swings. Photo: Shutterstock

Swedish women in two-year sex pill study

Three hundred women from across Sweden are taking part in a study designed to demonstrate that modern contraceptive pills don't lead to decreased libido or mood swings. READ  

National
Stockholm 'sinking' oil spill ship safe
The ship was rescued on Thursday. Photo: Swedish Coast Guard

Stockholm 'sinking' oil spill ship safe

After fears a ship carrying around 52 tonnes of oil could sink in Stockholm's archipelago, Sweden's Coast Guard said the vessel had been towed to safety. READ  

National
Dog attack policewoman acquitted on appeal
A scene from a video of the attack published by Dagens Nyheter

Dog attack policewoman acquitted on appeal

A policewoman accused of letting her dog attack a drunk man while she repeatedly hit him with a baton, has had her conviction overturned by a court in Stockholm. READ  

Entertainment
What's On: October 31st - November 7th
Uma Thurman will soon be on her way to Stockholm. Photo: TT

What's On: October 31st - November 7th

Halloween fun and an international film festival are the big events hitting Stockholm this week. We cast our eye over the capital and the rest of the country for the best activities to check out this week. READ  

International
Pirate Bay Swede found guilty in Denmark
Gottrid Svartholm Warg. File photo: TT

Pirate Bay Swede found guilty in Denmark

Sweden's Pirate Bay Founder Gottrid Svartholm Warg was found guilty of hacking crimes in a Danish court on Thursday. READ  

National
Malmö loses out as rare toads move in
The European green toad. Photo: H. Krisp (WikiCommons)

Malmö loses out as rare toads move in

After a rare species of toad moved into southern Sweden's Malmö, builders have had to tone down massive expansion plans in the area. READ  

Politics
Palestine recognized as state by Sweden
Sweden's Foreign Minister is Margot Wallström. Photo: TT

Palestine recognized as state by Sweden

The Swedish government has officially decided to recognize Palestine, with the move announced in a speech by the country's new Foreign Minister Margot Wallström. READ  

Interview
Stockholm's shocking take on Halloween
For ten days, Globen is transformed into a giant pumpkin. Photo: Shockholm

Stockholm's shocking take on Halloween

American Bill Schacht missed the spooky outfits, family feasts and charity events he associated with Halloween when he moved to Sweden. So he did something about it. The Local meets the founder of the capital's annual Shockholm parade. READ  

Business & Money
Huge losses for energy giant Vattenfall
A Vattenfall plant in Germany. Photo: TT

Huge losses for energy giant Vattenfall

Swedish energy company Vattenfall has reported losses for the third quarter in a row. READ  

International
Malala donates prize winnings to Gaza
Malala receives the Children's Prize from Queen Silvia. Photo: TT

Malala donates prize winnings to Gaza

UPDATED: Girls' rights champion Malala Yousafzai, who was in Sweden to accept the World's Children's Prize on Wednesday, said she would use all her winnings to help rebuild schools in war-ravaged Gaza. READ  

RECEIVE OUR NEWSLETTER AND ALERTS
Business & Money
Get your own office in Gothenburg or Stockholm - free for a day
Gallery
People-watching: October 30th
National
Sweden remains fourth best for gender equality
National
Timeline: Julian Assange sex allegations
Sport
World Cup ski race on 'fake' Stockholm slope
Blog updates

29 October

Scariest day (Blogweiser) »

"This is what’s frightening me on Halloween. http://www.youtube.com/watch?v=D4OFZVCu8J0&list=UUJu5J7jG4uoYSjWbpFsJBuQ Follow my posts on FB. ..." READ »

 

24 October

Editor’s blog, October 24th (The Local Sweden) »

"Hi readers, Get ready to read our weekly digest of Swedish news in less than 60 seconds. The..." READ »

 
 
 
Society
An Arctic tradition: hunting and handicraft
Society
Stockholm taxis offer free therapy sessions
National
The Local meets Health Minister Gabriel Wikström
Gallery
Property of the week: Österåker
Society
Homeless turtles get Stockholm police ride
National
Construction worker has 'Sweden's best beard'
National
Italian musician jazzes up Sweden's Lapland
Gallery
Zlatan's career in pictures
Finest.se
Gallery
People-watching: October 25th and 26th
Lifestyle
'Swedes are funnier than they think'
National
Swedish town 'like Venice' after heavy rains
Lifestyle
What's On in Sweden: October 24th - 31st
Gallery
People-watching: October 22nd
Gallery
In Pictures: Prince Carl Philip and Sofia Hellqvist
Lifestyle
Eight things to love about renting a Swedish apartment
National
Vasa ship cannon blasted in Sweden
National
Sub hunt: Day-by-day
National
Sub hunt: Stockholm islanders share their fears with The Local
Sponsored Article
The best options for oversea transfers
National
Dentist gives free care to Roma beggars
Gallery
Property of the week: Malmö
Gallery
PHOTOS: 'Foreign activity' in Swedish waters
TT
Society
QUIZ: How good is your Swedish?
Society
The nudity... and nine other things expat men notice in Sweden
Gallery
People-watching: October 15th
Gallery
Your views: Should outdoor smoking be banned in Sweden?
Business & Money
Sweden has 'large hole' in finances
Sponsored Article
Introducing... Finding a job in Stockholm
Society
Monster salmon caught in northern Sweden
Gallery
Property of the week: Lorensberg
National
Scandinavia's child bride
National
Ebola crisis: How is Sweden preparing?
Business & Money
How Sweden is becoming a cashless society
Gallery
Stockholm Burlesque Festival 2014
National
How a little red horse became a symbol for Sweden
Gallery
People-watching: October 12th
Business & Money
The hottest start-ups from southern Sweden
National
Stockholm is 'best' region for well-being
Gallery
People-watching: October 8th
National
Five facts to know about Patrick Modiano
Sponsored Article
How to catch the first lobster of the year
Team SCA
Sponsored Article
All-female SCA team takes off on Volvo Ocean Race
Latest news from The Local in Austria

More news from Austria at thelocal.at

Latest news from The Local in Switzerland

More news from Switzerland at thelocal.ch

Latest news from The Local in Germany

More news from Germany at thelocal.de

Latest news from The Local in Denmark

More news from Denmark at thelocal.dk

Latest news from The Local in Spain

More news from Spain at thelocal.es

Latest news from The Local in France

More news from France at thelocal.fr

Latest news from The Local in Italy

More news from Italy at thelocal.it

Latest news from The Local in Norway

More news from Norway at thelocal.no

1,008
jobs available
Swedish Down Town Consulting & Productions
Swedish Down Town Consulting & Productions is an innovative business company which provides valuable assistance with the Swedish Authorities, Swedish language practice and general communications. Call 073-100 47 81 or visit:
www.swedishdowntown.com
PSD Media
PSD Media is marketing company that offers innovative solutions for online retailers. We provide modern solutions that help increase traffic and raise conversion. Visit our site at:
http://psdmedia.se
If you want to drink, that’s your business.
If you want to stop, we can help.

Learn more about English-language Alcoholics Anonymous in Sweden. No dues. No fees. Confidentiality assured.
AA-EUROPE.ORG/SWEDEN