Final answer:
Autism spectrum disorder (ASD) is a neurodevelopmental disorder with varying prevalence estimates. The most recent CDC study suggests that the proportion of children exhibiting autism may be higher than previously thought.
Step-by-step explanation:
Autism spectrum disorder (ASD) is a neurodevelopmental disorder that affects the way a person thinks, behaves, and interacts with others. Estimates for the prevalence of ASD have changed over time. According to the most recent CDC study, the proportion of children exhibiting some form of autism may be as high as Y%. Previously, it was thought to be approximately X%.
It is important to note that the prevalence of autism can vary depending on the study and the criteria used for diagnosis. The CDC study provides valuable data on the current estimates, but further research is still needed to fully understand the true extent of autism spectrum disorders.