Delayed diagnosis? In some children, autism traits become ‘significantly more pronounced over time’

img
Child with autism. Image credit: Jack Firneno/Wire Photo

Some autistic children don’t show traits of the condition until age 5 or later, new research suggests. Others show a few mild features at age 3 but only later meet the criteria for diagnosis.

The findings suggest that autism traits are not always apparent by 24 months, the typical age for screening.

[Researcher Sally] Ozonoff and her colleagues recruited 746 children — 483 baby sibs and 263 controls — from three sites.

The team assessed the children with a standard diagnostic tool at age 3. They also used standard scales to score the children’s daily living skills and social abilities, and they asked parents to report concerns about their children’s behavior. They evaluated the children at least once more from age 5 to 9.

Related article:  How America is neglecting its growing elderly autistic population

Of the 746 children, 99 were diagnosed with autism at age 3 and 185 were diagnosed with related conditions. However, another 14 children, including 1 from the control group, received an autism diagnosis after age 5.

Half of the late-diagnosed children scored well below the cutoff for an autism diagnosis at age 3, but their scores increased significantly at ages 5 to 9. The other half scored just below the autism cutoff at age 3, and their scores bumped up slightly in that time.

The results suggest that autism traits in some children become significantly more pronounced over time.

Read full, original post: Slow onset may explain late autism diagnosis in some children

Outbreak
Outbreak Daily Digest
Biotech Facts & Fallacies
Talking Biotech
Genetics Unzipped
Video: Test everyone – Slovakia goes its own way to control COVID

Video: Test everyone – Slovakia goes its own way to control COVID

As Europe sees record coronavirus cases and deaths, Slovakia is testing its entire adult population. WSJ's Drew Hinshaw explains how ...
mag insects image superjumbo v

Disaster interrupted: Which farming system better preserves insect populations: Organic or conventional?

A three-year run of fragmentary Armageddon-like studies had primed the journalism pumps and settled the media framing about the future ...
dead bee desolate city

Are we facing an ‘Insect Apocalypse’ caused by ‘intensive, industrial’ farming and agricultural chemicals? The media say yes; Science says ‘no’

The media call it the “Insect Apocalypse”. In the past three years, the phrase has become an accepted truth of ...
globalmethanebudget globalcarbonproject cropped x

Infographic: Cows cause climate change? Agriculture scientist says ‘belching bovines’ get too much blame

A recent interview by Caroline Stocks, a UK journalist who writes about food, agriculture and the environment, of air quality ...
organic hillside sweet corn x

Organic v conventional using GMOs: Which is the more sustainable farming?

Many consumers spend more for organic food to avoid genetically modified products in part because they believe that “industrial agriculture” ...
benjamin franklin x

Are most GMO safety studies funded by industry?

The assertion that biotech companies do the research and the government just signs off on it is false ...
favicon

Environmental Working Group: EWG challenges safety of GMOs, food pesticide residues

Known by some as the "Environmental Worrying Group," EWG lobbies for tighter GMO legislation and famously puts out annual "dirty dozen" list of fruits and ...
m hansen

Michael Hansen: Architect of Consumers Union ongoing anti-GMO campaign

Michael K. Hansen (born 1956) is thought by critics to be the prime mover behind the ongoing campaign against agricultural biotechnology at Consumer Reports. He is an ...
News on human & agricultural genetics and biotechnology delivered to your inbox.
Optional. Mail on special occasions.
Send this to a friend