A new CDC report finds autism diagnoses may be on the rise in some US kids.
among children these days, with the COVID-19 pandemic contributing to delays in diagnosis, new data from the Centers for Disease Control and Prevention show.According to the CDC's Morbidity and Mortality Weekly Report, which looked at data from 11 communities around the U.S., 1 in 36 children aged 8 were identified as having autism spectrum disorder — a 22% increase from 2018, which found a prevalence of 1 in 44 children.
The research focused on 8-year-olds because of earlier data from the 1990s that focused on this age and 4-year-olds because it allows researchers to look at early community identification practices.In 2020, prevalence for autism spectrum disorder was 30% higher for Black, Asian and Hispanic 8-year-olds than in 2018. For white 8-year-olds, ASD prevalence was 14.6% higher than it was in 2018.
Kelly Shaw, Ph.D., epidemiologist and first author of the report on 4-year-olds, agrees that what's driving this increase isn't clear. The research into why boys have so much higher rates than girls is ongoing, he adds:"Researchers have a lot of different ideas about why that might be. Some think there might be some biological or hereditary factors."
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