Autism Prevalence
- Boys are four times more likely to be diagnosed with autism than girls.
- Autism affects all ethnic and socioeconomic groups.
- 31% of children with ASD have an intellectual disability (intelligence quotient [IQ] <70), 25% are in the borderline range (IQ 71–85), and 44% have IQ scores in the average to above average range (i.e., IQ >85).
- 1 in 27 boys identified with autism.
- 1 in 116 girls identified with autism
What causes ASD?
Minority groups tend to be diagnosed later and less often. There is no medical detection for autism.