RENO, Nev. (MyNews4.com & KRNV) -- Among the Autism and Developmental Disabilities monitoring sites, the overall prevalence of Autism Spectrum Disorder is one in every 68 8-year-old children for 2010.
Overall ASD prevalence varied among sites from 5.7 to 21.9 per 1,000 children aged 8 years. ASD prevalence estimates also varied by sex, racial and ethnic groups. Approximately one in 42 boys and one in 189 girls living in the ADDM Network communities were identified as having ASD. Non-Hispanic white children were approximately 30% more likely to be identified with ASD than non-Hispanic black children and were almost 50% more likely to be identified with ASD than Hispanic children.
ADDM Network investigators will continue to monitor the prevalence of ASD in select communities. They will focus on exploring changes within these communities that might affect both the observed prevalence of ASD and population-based characteristics of children identified with ASD.
Although ASD is sometimes diagnosed by 2 years of age, the median age of the first diagnosis remains older than age 4 years in the ADDM Network communities.
Recommendations from the ADDM Network include addressing the need for standardized, widely adopted measures to document ASD severity and functional limitations associated with ASD diagnosis. ADDM Networks are also working toward improved recognition and documentation of symptoms of ASD and decreasing the age when children receive their first evaluation for and a diagnosis. They encourage the enrollment in community-based support systems once diagnosed.