A Comparison Study of Autism Spectrum Disorder Referrals 1997 and 1989
Cite this article as: Baker, H.C. J Autism Dev Disord (2002) 32: 121. doi:10.1023/A:1014892606093 Abstract
A number of overseas studies have indicated an increase in the prevalence of Autism Spectrum Disorder (ASD). In the Australian Capital Territory, information (number, age, sex, final diagnosis) was gathered on all children referred for suspected ASD to Child and Adolescent Mental Health Service during 1997, and the findings were compared with those from a similar study in 1989. It was found that (1) there was a 200% increase in positive diagnoses of ASD in 1997 despite a 0.5% decrease in population, (2) there was a wider age range in the 1997 cohort, (3) there was a 26% increase in milder cases in 1997, and (4) the ratio of boys to girls decreased from 8:1 in 1989 to 3.5:1 in 1997. These findings are compared with those overseas, and questions are raised for further exploration.
Autism prevalence Australian Capital Territory (ACT) REFERENCES
Achenbach, T. M. (1991). The Child Behaviour Checklist, ACER.
American PsychiatricAssociation (1987).
DSM-111-R, diagnostic and statistical manual of mental disorders, third edition, revised.
AmericanPsychiatric Association, (1994).
DSM-IV, diagnostic and statistical manual of mental disorders, fourth edition.
Baren-Cohen, S.. (1995). Does the autistic child have a “theory of mind”?
Cognition, 21, 37–46.
Baren-Cohen, S.(1989). The autistic child's theory of mind: a case of specific developmental delay.
Journal of Child Psychology and Psychiatry 30,
Einfield, S. L, & Tonge, B. J. (1995). The Developmental Behaviour Checklist: Thedevelopment and validation of an instrument to assess behavioural and emotional disturbances in children and adolescence with mental retardation,
Journal of Autism and Developmental Disorders, 25,
Fombonne, E. (1996). Is theprevalence of autism increasing?
Journal of Autism and Developmental Disorders, 26,
Fombonne, E.(1999). The epidemiology of autism: A review.
Psychological Medicine, 29,
et al.(1991). Is autism more common now than ten years ago? British Journal of Psychiatry, 158, 403– 409.
Klin, A., and Volkmar, F. R. (1995). Autism and the pervasive developmental disorders.
Child and Adolescent Clinics of North America, 4, 617–630.
Schopler, E., Ruchler, R. J., & Renner, B. R. (1986).
The Childhood Autism Rating Scale forDiagnostic Screening and Classification for Autism. New York: Irvington Publishers Inc.
Volkmar, F. R.,
(1994).Field trial for autistic disorder in DSMIV.
American Journal of Psychiatry, 151,
Webb, E. V. J., Lobo, S., Hervas, A., Scourfield, J., & Fraser, W. I., (1997). The changing prevalence of autistic disorder in a Welsh health district.
Developmental Medicine and Child Neurology, 39, 150–152.
Wing, L. (1981). Asperger's syndrome: Aclinical account.
Psychological Medicine, 11,
Wing, L. (1982).
Schedule of handicaps, behaviours andskills. London: Social Psychiatry Unit, Medical Research Council.
Wing, L. (1996). Autistic Disorder InterviewChecklist. In I. Rapin (Ed.),
Pre-school children with inadequate communication (pp. 247–251) London: MacKeith Press. “Changes in Population of Persons with Autism and Pervasive Developmental Disorders in California's Developmental Services System 1987 through 1998”. A Report to the Legislature, March 1, 1999. California, U.S.A.: Department of Developmental Services. Copyright information
© Plenum Publishing Corporation 2002