Autism redefined: Yale researchers study impact of proposed diagnostic criteria

Getting an autism diagnosis could be more difficult in 2013 when a revised diagnostic definition goes into effect. The proposed changes may affect the proportion of individuals who qualify for a diagnosis of autism spectrum disorder, according to preliminary data presented by Yale School of Medicine researchers at a meeting of the Icelandic Medical Association.

The proposed changes to the diagnostic definition would be published in the fifth edition of the American Psychiatric Association's (APA) " (DSM-5)."

"Given the potential implications of these findings for service eligibility, our findings offer important information for consideration by the task force finalizing DSM-5 diagnostic criteria," said Yale Child Study Center (CSC) director Fred Volkmar, M.D., who conducted the study with CSC colleagues Brian Reichow and James McPartland.

Volkmar and his team found that in a group of individuals without intellectual disabilities who were evaluated during the 1994 DSM-IV field trial, it was estimated that approximately half might not qualify for a diagnosis of autism under the proposed new definition.

Volkmar stressed that these preliminary findings relate only to the most cognitively able and may have less impact on diagnosis of more cognitively disabled people. "Use of such labels, particularly in the United States, can have important implications for service," he said. "Major changes in diagnosis also pose issues for comparing results across research studies."

More information: Volkmar first presented the preliminary research results in September at Yale and in October at the Institute On Autism American Academy of Child Adolescent Psychiatry Meeting In Toronto. Volkmar and colleagues will publish full study results in the April print edition of the Journal of the American Academy of Child and Adolescent Psychiatry. The study may be available online as early as late February or early March.

add to favorites email to friend print save as pdf

Related Stories

Study looks more closely at personality disorders

Sep 21, 2011

A newly published paper from Rhode Island Hospital argues against the proposed changes to redefine the number of personality disorders in the upcoming Diagnostic Statistical Manual, 5th edition (DSM-5). In their study, the ...

New framework proposed for manual of mental disorders

May 05, 2011

The American Psychiatric Association today released the organizational framework proposed for the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM). This restructuring of the DSM’s chapters ...

Recommended for you

Adults with autism at higher risk of sexual victimization

Aug 14, 2014

Adults with autism are at a higher risk of sexual victimization than adults without, due to lack of sex education, but with improved interventions that focus on sexual knowledge and skill building, the risk could be reduced, ...

Autism rates steady for two decades

Aug 14, 2014

(Medical Xpress)—A University of Queensland study has found no evidence of an increase in autism in the past 20 years, countering reports that the rates of autism spectrum disorders (ASDs) are on the rise.

Common variation genes behind the risk of autism

Aug 05, 2014

A number of relatively common gene variations combined may increase the risk of autism. These are the findings of a new study from Swedish and American researchers published in Nature Genetics.

User comments