- ASD prevalence among U.S. children reached 32.2 per 1,000 children in 2022.
- Variations exist across regions and over time due to screening practices, genetic and environmental influences, and earlier identification.
- Vaccine uptake has declined, raising concerns amid increasing ASD diagnoses.
- ASD prevalence remains higher among specific racial and ethnic groups, with co-occurring intellectual disability.
- Experts attribute rising prevalence to factors beyond increased awareness and evolving diagnostic criteria.
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