Autism Prevalence slightly Higher: CDC

Atlanta, GA–About 1 in 59 eight -year-old children in 11 communities across the United States were identified as having autism in 2014, according to a report published today in CDC’s Morbidity and Mortality Weekly Report (MMWR) Surveillance Summary.

The data in this report come from CDC’s Autism and Developmental Disabilities Monitoring (ADDM) Network – a tracking system that provides estimates of the prevalence and characteristics of autism spectrum disorder among more than 300,000 8-year-old children. ADDM is the largest population-based program to monitor autism and the only autism tracking system that examines health and education records.

The latest estimate of  1.7 percent (1 in 59) is higher than the previous ADDM estimate released in 2016, which found a prevalence of 1.5 percent or 1 in 68 children. Some of the change in prevalence could be due to improved autism identification in minority populations – although autism is still more likely to be identified in white children than in black or Hispanic children. This identification is important, because children identified early with autism and connected to services are more likely to reach their fullest potential.

The Autism and Developmental Disabilities Monitoring Network estimates are combined from 11 communities within Arizona, Arkansas, Colorado, Georgia, Maryland, Minnesota, Missouri, New Jersey, North Carolina, Tennessee, and Wisconsin. The 11 communities surveyed in this report represent about 8 percent of 8-year-old children in the United States.

Estimates of autism varied widely among the 11 communities in this report, although five reported similar estimates of 1.3 percent to 1.4 percent. The highest prevalence estimate of 2.9 percent came from a community in New Jersey. Some of the regional differences in autism prevalence estimates among the 11 communities might be due to differences in how autism is being diagnosed and documented.

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