Incidence of autism spectrum disorders in children in two Australian states. Williams, Katrina en_US Glasson, Emma J. en_US Wray, John en_US Tuck, Marshall en_US Helmer, Megan en_US Bower, Carol en_US Mellis, C en_US 2021-11-25T12:46:15Z 2021-11-25T12:46:15Z 2005 en_US
dc.description.abstract Aim: To ascertain the incidence of autism spectrum disorders in Australian children. Setting: New South Wales (NSW) and Western Australia (WA), July 1999 to December 2000. Design: Data were obtained for WA from a prospective register and for NSW by active surveillance. Main outcome measures:Newly recognised cases of autism spectrum disorders (defined as autistic disorder, Asperger disorder and pervasive developmental disorder not otherwise specified [PDD-NOS]) in children aged 0–14 years; incidence was estimated in 5-year age bands (0–4 years, 5–9 years, 10–14 years). Results: In WA, 252 children aged 0–14 years were identified with autism spectrum disorder (169 with autistic disorder and 83 with Asperger disorder or PDD-NOS). Comparable figures in NSW were 532, 400 and 132, respectively. Most children were recognised with autistic disorder before school age (median age, 4 years in WA and 3 years in NSW). Incidence of autistic disorder in the 0–4-years age group was 5.5 per 10 000 in WA (95% CI, 4.5–6.7) and 4.3 per 10 000 in NSW (95% CI, 3.8–4.8). Incidence was lower in older age groups. The ratio of all autism spectrum disorders to autistic disorder alone was 1.5:1 in WA and 1.3:1 in NSW, and rose with age (1.8:1 and 2.9:1 in 10–14-year-olds in WA and NSW, respectively). Conclusions: These are the first reported incidence rates for autism for a large Australian population and are similar to rates reported from the United Kingdom. Ongoing information gathering in WA and repeat active surveillance in NSW will help to monitor any future changes. en_US
dc.description.uri en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title Incidence of autism spectrum disorders in children in two Australian states. en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.relation.faculty Medicine & Health
unsw.relation.ispartofissue 3 en_US
unsw.relation.ispartofjournal Medical Journal of Australia en_US
unsw.relation.ispartofpagefrompageto 108-111 en_US
unsw.relation.ispartofvolume 182 en_US
unsw.relation.originalPublicationAffiliation Williams, Katrina, Women's & Children's Health, Faculty of Medicine, UNSW en_US
unsw.relation.originalPublicationAffiliation Glasson, Emma J. en_US
unsw.relation.originalPublicationAffiliation Wray, John en_US
unsw.relation.originalPublicationAffiliation Tuck, Marshall en_US
unsw.relation.originalPublicationAffiliation Helmer, Megan en_US
unsw.relation.originalPublicationAffiliation Bower, Carol en_US
unsw.relation.originalPublicationAffiliation Mellis, C en_US School of Women's & Children's Health *
Resource type