
Am J Psychiatry 157:1980-1987, December 2000
© 2000 American Psychiatric Association
Two-Year Outcome of Preschool Children With Autism or Aspergers Syndrome
Peter Szatmari, M.D.,
Susan E. Bryson, Ph.D.,
David L. Streiner, Ph.D.,
Freda Wilson, B.A.,
Lynda Archer, Ph.D., and
Cynthia Ryerse, M.D.
OBJECTIVE: DSM-IV specifies that Aspergers disorder is a type of pervasive developmental disorder without clinically significant cognitive or language delay. There are no data, however, on the outcome of children with Aspergers disorder or on whether their outcome differs from that of children with autism. The objectives of this study were to compare the outcome of groups of children with these disorders over a period of 2 years on variables independent of the defining criteria and to identify variables that might account for these differences. METHOD: All children 46 years of age who came for assessment or were currently in treatment at a pervasive developmental disorder service of one of several centers in a large geographic region were identified. Children who received a diagnosis of autism (N=46) or Aspergers syndrome (N=20) on the basis of a diagnostic interview and had an IQ in the nonretarded range were given a battery of cognitive, language, and behavioral tests. Families were contacted roughly 2 years after the date of their enrollment in the study, and many of the tests were readministered. RESULTS: Children with Aspergers syndrome had better social skills and fewer autistic symptoms 2 years after study enrollment than the children with autism. The differences in outcome could not be explained by initial differences in IQ and language abilities. Children with autism who had developed verbal fluency at follow-up were very similar to the children with Aspergers syndrome at study enrollment. CONCLUSIONS: Although the exact mechanism for the differences in outcome remain to be determined, it appears that Aspergers disorder and autism represent parallel but potentially overlapping developmental trajectories.
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M. Perkins
Children with Asperger's syndrome had higher socialisation scores and fewer autistic symptoms than children with autism
Evid. Based Ment. Health,
November 1, 2001;
4(4):
120 - 120.
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