Assoc. Prof. Ali Kandeğer

World Autism Awareness Day · 2 April

Autism in adulthood

Autism begins in childhood and lasts a lifetime. Diagnosis in children keeps improving, while autism in adults is still often missed.

Erişkinlikte Otizm görsel dizisinin kapağı

Visual series

9 slides, in Turkish · Instagram

Görsel dizi, sayfa 1 / 9Görsel dizi, sayfa 2 / 9Görsel dizi, sayfa 3 / 9Görsel dizi, sayfa 4 / 9Görsel dizi, sayfa 5 / 9Görsel dizi, sayfa 6 / 9Görsel dizi, sayfa 7 / 9Görsel dizi, sayfa 8 / 9Görsel dizi, sayfa 9 / 9

What is autism?

  • Autism is a neurodevelopmental condition that begins in childhood, with difficulties in social communication and interaction and restricted, repetitive interests and behaviours.
  • It is a spectrum: how it shows, and how much support a person needs, vary widely from one person to another.

More children are being diagnosed

According to the latest US surveillance data, published in 2025, one in 31 eight-year-olds was identified with autism; the “one in 36” figure in the visual series came from the previous round. With growing scientific knowledge, clinical experience and public awareness, diagnosis in children has become relatively easier.

Source: Shaw et al. MMWR Surveill Summ, 2025

Autism in adults is still under-recognised

A large gap by age
In a study of English primary care records, one in 34 people aged 10–14 had an autism diagnosis, compared with one in 6,000 among those aged 70 and over.
Undiagnosed adults
The same study estimated that 59–72% of autistic people may still be undiagnosed.
The cost of being missed
Some autistic adults who were never diagnosed live dependent or semi-dependent lives, are followed under other diagnoses, or carry on with psychosocial difficulties such as bullying, stigma, and problems at work, school or home.

Source: O’Nions et al. Lancet Reg Health Eur, 2023

It is never too late for a diagnosis

After a diagnosis in adulthood, these steps matter a great deal:

  • Information about the diagnosis (psychoeducation)
  • Awareness of social rights and entitlements
  • Reviewing co-occurring conditions and their treatment, where present

Evidence-based support

In autistic adults, evidence-based social skills training improves social communication and interaction and reduces social and adjustment difficulties. In a randomised controlled trial of the UCLA PEERS® programme for young adults, for example, social skills and social engagement improved, and most gains were maintained at follow-up.

Source: Laugeson et al. J Autism Dev Disord, 2015

Lifelong awareness

Adapted from an Instagram series (in Turkish). General information only; it does not replace a medical assessment.