Autism Spectrum Disorder in Older adults / Seniors

Key things to know What the evidence shows
How common is it? GBD-modelled prevalence declines with age; ~0.13% at 60–64
Is it more common among older adults / seniors? Historically under-recognized cohorts; autism persists throughout life
Are older adults / seniors at higher risk? Not newly “caused” by ageing; major recognition gap
How much higher is the risk? GBD: 127.6/100k at age 60–64, falling further at older ages
How often can it be missed? Very high
Does it show up differently among older adults / seniors? Yes
How might it look different? Lifetime social/sensory differences may be mistaken for personality, isolation or cognitive ageing
What commonly occurs alongside it? Anxiety; depression; neurological/medical conditions
What can it be confused with? Social anxiety; depression; personality traits; cognitive impairment/dementia
Common screening tool AQ-10 with clinical assessment
Separate screening tool for older adults / seniors None established specifically for seniors
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