What do the ADDM Network findings tell us?
The average ASD prevalence was 6.7 per 1,000 for 8-year-olds in 2000 and 6.6 per 1,000 8-year-olds in 2002 in several areas of the United States. That’s about 1 in 150 children in these communities. Most ADDM Network sites found 5.2 to 7.6 per 1,000 eight-year-old children with ASDs in 2002. The prevalence was much lower (3.3 per 1,000) in Alabama and higher (10.6 per 1,000) in New Jersey in 2002. Prevalence stayed the same from 2000 to 2002 in four of the six sites with data for both years. It rose slightly in Georgia and significantly in West Virginia, indicating the need for tracking prevalence over time. More information about the 2000 surveillance year • Approximately 4.5 percent of U.S. eight-year-old children (i.e., children born in 1992) from six states – Arizona, Georgia, Maryland, New Jersey, South Carolina and West Virginia. A total of 1,252 eight-year olds were identified as having an ASD. • Six sites collected data: Arizona (one county including metro Phoenix), Georgia (fi
