Surveillance data on autism spectrum disorder prevalence in 8-year-old children across 11 US sites

This surveillance summary from the Autism and Developmental Disabilities Monitoring Network presents data on autism spectrum disorder prevalence and characteristics among 8-year-old children across 11 sites in the United States in 2020. The report describes surveillance methodology but does not provide specific prevalence rates, sample sizes, or detailed demographic characteristics of the identified population.

No intervention or comparator was reported, as this was a descriptive surveillance study rather than an interventional trial. The main results section indicates that the specific prevalence outcome, effect measures, absolute numbers, and statistical confidence intervals were not reported in the available summary.

Safety and tolerability data were not reported, consistent with the surveillance nature of this report. Key limitations include the absence of reported sample size, specific prevalence figures, and detailed methodological constraints that might affect interpretation. The practice relevance was not explicitly stated, but such surveillance data primarily serve public health monitoring rather than direct clinical decision-making for individual patients.