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CDC Study Finds Delay Between Evaluation and Autism Diagnosis

April 23, 2007

A Centers for Disease Control study in the April autism supplement of the Journal of Developmental and Behavioral Pediatrics, released May 10, 2006, found that the average age of initial evaluation of children later diagnosed with an autism spectrum disorder was 4 years of age but the average age of diagnosis was 5 years, 1 month, a 13 month delay. The study data was collected from the Metropolitan Atlanta Developmental Disabilities Surveillance Program 2000 (MADDSP).

According to the study, a delay in diagnosis existed for both boys and girls and across racial/ethnic classification. Click here to read the release from the CDC (PDF).