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New autism definition may decrease diagnosis by one-third, Columbia University finds
Date:2/25/2014

roups. The DSM-5 also added a new category called social communication disorder (SCD) to diagnose individuals who have verbal and nonverbal communication impairments but lack other attributes associated with autism. Some individuals diagnosed with PDD-NOS under the old manual would be identified as individuals with SCD under DSM-5, according to the APA.

Under DSM-5, there was a statistically significant decrease in AD diagnosis of 22 percent, compared with the fourth edition of the manual, the meta-analysis found. There was also a statistically significant decrease of 70 percent in diagnosis of PDD-NOS. While diagnosis of Asperger's also declined under DSM-5, the reduction was not statistically significant. In addition, the study found that some individuals who no longer met the criteria for an ASD diagnosis under DSM-5 would also fail to meet the criteria for SCD.

"We are potentially going to lose diagnosis and treatment for some of the most vulnerable kids who have developmental delays," says Kulage. "In many instances, children require a diagnosis of ASD to receive medical benefits, educational support and social services."

Approximately 1 in 88 children in the U.S. have ASD, according to the Centers for Disease Control and Prevention. People with ASD tend to have difficulties with communication, misread nonverbal interactions, and have difficulty making friends. They may also be heavily reliant on routines, extremely sensitive to changes in their environment, and intensely focused on interests not appropriate to the social context they are in. Symptoms fall on a continuum, with variation in severity, and early diagnosis and access to treatment have been proven to result in better outcomes.


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Contact: Lisa Rapaport
lr2692@cumc.columbia.edu
212-342-3795
Columbia University Medical Center
Source:Eurekalert  

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New autism definition may decrease diagnosis by one-third, Columbia University finds
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