Early Identification Of Autism Spectrum Disorder Among Children Aged 4 Years — Autism & Developmental Disabilities Monitoring Network, 11 Sites, United States, 2018

On December 3, 2021, the U.S. Centers for Disease Control and Prevention published this Morbidity and Mortality Weekly Report about early identification of autism spectrum disorder (ASD) among children aged 4 years in 11 U.S. sites of the Autism & Developmental Disabilities Monitoring Network during 2018. The Autism and Developmental Disabilities Monitoring Network is an active surveillance program that estimates ASD prevalence and monitors timing of ASD identification among children aged 4 and 8 years. This report focuses on children aged 4 years in 2018, who were born in 2014 and had a parent or guardian who lived . . .