What is the US prevalence of autism spectrum disorder (ASD)?

Updated: Sep 30, 2019
  • Author: James Robert Brasic, MD, MPH; Chief Editor: Caroly Pataki, MD  more...
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Estimates of the prevalence of autism suggest that as many as 400,000 individuals in the United States have autism or a related condition.

The Autism and Developmental Disabilities Monitoring (ADDM) Network surveillance system provides estimates of the prevalence of ASD among children aged 8 years whose parents or guardians reside within 11 ADDM sites in the United States (Arizona, Arkansas, Colorado, Georgia, Maryland, Minnesota, Missouri, New Jersey, North Carolina, Tennessee, and Wisconsin). The Network's 2018 report, based on 2014 data, shows the overall prevalence of ASD among the 11 ADDM sites was 16.8 per 1,000 (one in 59) children aged 8 years. [96]

According to survey results from parents across the United States, 1 in 40 children (2.5%) has ASD, representing an estimated 1.5 million children ages 3 to 17 years [97]  an increase from 11 in 1000 in 2007. [98]

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