title: The epidemiology of Asperger syndrome. A total population study.
abstract: This paper describes a total population study of Asperger syndrome using a two-stage procedure. All school children in an outer Göteborg borough were screened. Final case selection based on clinical work-up showed a minimum prevalence of 3.6 per 1.000 children (7-16 years of age) using Gillberg and Gillberg's criteria and a male to female ratio of 4:1. Including suspected and possible Asperger syndrome cases, the prevalence rose to 7.1 per 1.000 children and the male:female ratio dropped to 2.3:1. These findings are discussed as they relate to previously published results in the field and to findings obtained using Szatmari et al.'s and ICD-10 draft criteria for the disorder.
authors.affiliation: Child Neuropsychiatry Clinic, Annedals Clinics, Göteborg, Sweden.
authors.forename: S
authors.initials: S
authors.lastname: Ehlers
authors.forename: C
authors.initials: C
authors.lastname: Gillberg
mesh_terms: D000293:Adolescent; D001321:Autistic Disorder / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D002648:Child; D002659:Child Development Disorders, Pervasive / Q000175:diagnosis / Q000453:epidemiology* / Q000523:psychology; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D015994:Incidence; D008607:Intellectual Disability / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D008297:Male; D008403:Mass Screening; D019965:Neurocognitive Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D010552:Personality Assessment / Q000706:statistics & numerical data; D011594:Psychometrics; D013548:Sweden / Q000453:epidemiology