1. In 2020, according to the Centers for Disease Control and Prevention (CDC), 1 in 54 children in the U.S is diagnosed with autism.
2. Male is more likely to be diagnosed with autism than females. 1 in 34 boys diagnosed with autism and 1 in 144 girls diagnosed with autism.
3. In China, 10.3 in 10,000 children from 2- to 6-year-old are diagnosed with autism (A review of the prevalence of Autism Spectrum Disorder in Asia).
4. In Hong Kong, 1.68 per 1,000 under 15-year-old are diagnosed with autism (Epidemiological study of autism spectrum disorder in China).
The prevalence of autism might be reported slightly differently on multiple sources. Despite that, there is one thing that stays absolutely consistent: the number of diagnosed autism individuals is growing rapidly year by year across the world.