Autism Prevalence Rises to 1 in 31 U.S. Children, CDC Reports

Autism Prevalence Rises to 1 in 31 U.S. Children, CDC Reports

The prevalence of autism among 8-year-olds in the United States has increased to 1 in 31 (3.2%) in 2022, up from 1 in 36 in 2020, according to a new report from the Centers for Disease Control and Prevention (CDC). The findings, based on data from the CDC's Autism and Developmental Disabilities Monitoring (ADDM) Network, highlight improved identification and reduced disparities across racial and ethnic groups.

Key Findings

The report, published in the CDC's Morbidity and Mortality Weekly Report (MMWR), reveals several notable trends:

• Improved identification across groups: The gap in autism prevalence between white children and children of color has narrowed, suggesting progress in reducing diagnostic disparities. For example, Black and Hispanic children are now being identified at rates closer to those of white children, a shift attributed to better screening and access to services. More on this trend can be found here.
• Increased diagnosis among girls and children with intellectual disabilities: Autism is historically underdiagnosed in girls, but the new data show a rise in identification among this group. Similarly, more children with intellectual disabilities are receiving autism diagnoses, reflecting broader diagnostic criteria and awareness. Johns Hopkins Bloomberg School of Public Health provides further insights.
• Factors behind the increase: Experts emphasize that the rise in prevalence is likely due to improved surveillance, expanded screening, and reduced barriers to diagnosis—not a true increase in the number of children with autism. "This is not an epidemic," said a researcher from the Johns Hopkins Bloomberg School of Public Health. "It's a reflection of our ability to identify autism more accurately and inclusively."

What's Driving the Change?

The CDC's findings align with a broader trend of increasing autism prevalence over the past two decades. As CNN reported, the rise is largely attributed to:

• Better screening tools: Pediatricians are now more likely to use standardized autism screening tools during well-child visits. These tools, such as the M-CHAT (Modified Checklist for Autism in Toddlers), help identify early signs of autism.
• Greater awareness: Parents and educators are more familiar with the signs of autism, leading to earlier referrals for evaluation. For instance, a parent noticing their child's lack of eye contact or delayed speech might seek an evaluation sooner than in the past.
• Reduced stigma: Families may be more willing to seek diagnoses due to reduced stigma and increased acceptance of neurodiversity. The Autism Society of America has played a significant role in promoting acceptance and understanding.

Debunking Misinformation

The CDC's report has also sparked discussions about misinformation surrounding autism causes. Some political figures have falsely linked autism to vaccines or painkillers, but the CDC and other experts have repeatedly debunked these claims. As ABC News reported, there is no evidence to support these theories, and they are unrelated to the CDC's findings. For more on debunking these myths, visit FactCheck.org.