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In 2007, AAP guidelines recommended screening all children for autism spectrum disorder (ASD) at ages 18 and 24 months. A team of experts reviews current knowledge of ASDs in young children and the challenges of assessment and management in children younger than 2 years. Highlights of the review include the following:
The average age of diagnosis remains at about 4 years.
Prospective studies in high-risk infants (siblings of children with autism) suggest that infants who are subsequently diagnosed with ASD have impairments in various domains (including visual, motor, play, and social communication) by ages 12 to 18 months.
The Modified Checklist for Autism in Toddlers (M-CHAT) is a parent questionnaire that includes a follow-up interview for p…