How Common Is Autism?

All information provided on this page comes form the www.autismspeaks.org website.  It is a great website to refer to.  I am not affiliated with www.autismspeaks.org  – however, the site has helped us tremendously and has provided us with information we have not read anywhere else.

How Common Is Autism?

 

Autism statistics from the U.S. Centers for Disease Control and Prevention (CDC) identify around 1 in 68 American children as on the autism spectrum–a ten-fold increase in prevalence in 40 years. Careful research shows that this increase is only partly explained by improved diagnosis and awareness. Studies also show that autism is four to five times more common among boys than girls. An estimated 1 out of 42 boys and 1 in 189 girls are diagnosed with autism in the United States.

 

ASD affects over 2 million individuals in the U.S. and tens of millions worldwide. Moreover, government autism statistics suggest that prevalence rates have increased 10 to 17 percent annually in recent years. There is no established explanation for this continuing increase, although improved diagnosis and environmental influences are two reasons often considered.

Information From: www.autismspeaks.org/what-autism

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