Parents who reproduce later in life are more likely to have children who develop autism disorders, a study finds.
The study, published in the journal Evolution, Medicine, and Public Health, suggested that late reproduction was not associated with increased risk for schizophrenia in offspring.
Watch What Else is Making News
- Pakistan High Commission Staffer Caught With Defence Documents: What It Means For India & Pakistan
- The Royal Opera House Reopens After Decades Of Neglect: Here’s A Quick Tour
- Tata Sons Rubbishes Cyrus Mistry’s Allegations: Here’s What Happened
- Pakistan High Commissioner denies allegations leveled on his staffer for espionage activities
- Odisha: Villagers Refuse To Cremate Dalit Woman’s Body
- Here’s What Farhan Akhtar Said On Karan Johar-MNS ‘Deal’ Over Ae Dil Hai Mushkil’s Release
- Government’s Diwali Gift to Central Government Employees, Pensioners
- Bigg Boss 10 26th October Review: This Episode Is All About Fights
- New Zealand Beat India By 19 Runs In Ranchi; Series Levelled At 2-2
- DND Toll-Free: Noida Toll Company Moves Supreme Court Against Allahabad High Court
- British PM Theresa May Says Kashmir Is A Matter For India, Pakistan To Sort Out
- J&K: Students Suffer As Schools Along LOC Forced To Shut Amid Firing
- Jayalalithaa’s Health: AIADMK Women Supporters Continue Special Prayers For CM
- HTC Desire 10 Lifestyle First Look Video
- Fissures Remain Within Samajwadi Party: All You Need To Know
The authors used a sample of about 1.7 million people out of which approximately 6.5 per cent were diagnosed with autistic or schizophrenic disorders during this time.
Their data included autistic and schizophrenic diagnoses for up to 30 years of age and over 20 potentially confounding medical and socio-economic factors.
Above-average paternal and maternal ages were associated with increased risk of most autistic disorders in offspring and this effect was magnified in offspring of very old fathers.
However, advanced maternal and paternal ages were not associated with higher risk of any schizophrenic disorder. In contrast, children of young parents had reduced risks of autism and only children of very young mothers had increased risks of schizophrenia.
More dissimilarly aged parents meant enhanced risk for both autistic and schizophrenic disorders in offspring compared to parents with similar ages at childbirth, but only up to a certain point where risks levelled out.
“The magnitude of these increases and decreases in statistical risk need to be scaled against the fortunately rather modest absolute risks of being diagnosed with a mental disorder,” said Sean Byars, researcher at the Copenhagen Centre for Social Evolution, in Denmark.