The changing prevalence of autism in three regions of Canada

Ouellette‐Kuntz, Hélène; Coo, Helen; Lam, Miu; Breitenbach, M; Hennessey, Paula E.; Jackman, Paulette D.; Sm, Lewis; Dewey, Deborah; Bernier, François P.; Chung, Amy M.

doi:10.1007/s10803-013-1856-1

Cited by 58 publications

(50 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Significant variation exists in prevalence rates around the world; Australia -1 in 100 (AAB-ASD, 2012), United Kingdom -1 in 86 (Baird et al, 2006), South Korea -1 in 38 (Kim et al, 2011), China -1 in 360 (Huang et al, 2014). Since the year 2000, figures recorded in the USA have more than doubled, increasing from 1 in 150 children to 1 in 68 (CDC, 2013) and trends suggest a steady worldwide increase in diagnosed cases (Croen, Grether, Hoogstrate, & Selvin, 2002;Ouellette-Kuntz et al, 2014;Parner et al, 2011;Sun & Allison, 2010).…”

Section: Prevalencementioning

confidence: 99%

The Bridges and Barriers Model of Support for High-Functioning Students with ASD in Mainstream Schools

Holcombe¹,

Plunkett²

2016

AJTE

View full text Add to dashboard Cite

Section: Prevalencementioning

confidence: 99%

The Bridges and Barriers Model of Support for High-Functioning Students with ASD in Mainstream Schools

Holcombe¹,

Plunkett²

2016

AJTE

View full text Add to dashboard Cite

“…A similar study design indicates a current ASD prevalence among adults at approximately 1 % (Brugha et al 2011), however studies on adult prevalence are sparse. Furthermore, global ASD prevalence estimates have increased substantially over recent decades (Elsabbagh et al 2012), and over shorter, current time frames (Baird et al 2006;Pinborough-Zimmerman et al 2012;CDC 2014;Ouellette-Kuntz et al 2014). Although increases in the identified prevalence of ASD have been noted at all levels of intellectual ability (Baird et al 2006), they have been more pronounced for those with average or above-average IQ (Elsabbagh et al 2012;Saemundsen et al 2013;CDC 2014).…”

Section: Introductionmentioning

confidence: 99%

Changes in Prevalence of Autism Spectrum Disorders in 2001–2011: Findings from the Stockholm Youth Cohort

Idring

Lundberg

Sturm

et al. 2014

J Autism Dev Disord

239

195

View full text Add to dashboard Cite

In a record-linkage study in Stockholm, Sweden, the year 2011 prevalence of diagnosed autism spectrum disorders (ASD) was found to be 0.40, 1.74, 2.46, and 1.76% among 0-5, 6-12, 13-17, and 18-27 year olds, respectively. The corresponding proportion of cases with a recorded diagnosis of intellectual disability was 17.4, 22.1, 26.1 and 29.4%. Between 2001 and 2011, ASD prevalence increased almost 3.5 fold among children aged 2-17 years. The increase was mainly accounted for by an eightfold increase of ASD without intellectual disability (from 0.14 to 1.10 %), while the prevalence of ASD with intellectual disability increased only slightly (from 0.28 to 0.34%). The increase in ASD prevalence is likely contributed to by extrinsic factors such as increased awareness and diagnostics.

show abstract

“…Twin studies provide evidence of moderate-to-high heritability, 1,2 but environmental factors also influence risk. 2 The increasing prevalence 3,4 and substantial economic burden 5 of ASD form a strong rationale for investigating potentially modifiable risk factors.…”

mentioning

confidence: 99%

The association between the interpregnancy interval and autism spectrum disorder in a Canadian cohort

Coo

Ouellette‐Kuntz

Lam

et al. 2015

Can J Public Health

Self Cite

View full text Add to dashboard Cite

OBJECTIVES: Two studies reported an increased risk of autistic disorder in children conceived less than 12 months after a previous birth. Our objective was to examine the association between the interpregnancy interval (IPI) and autism spectrum disorder (ASD) in a Canadian cohort.METHODS: Using administrative datasets housed at the Manitoba Centre for Health Policy, we identified pairs of first-and second-born singleton siblings born between 1988 and 2005. Diagnoses of ASD were ascertained by searching physician billing claims, hospital discharge abstracts, education data, and a database containing information on individuals identified for a 2002-2007 ASD surveillance program in Manitoba. Logistic regression models were fit to examine the association between the IPI and ASD in 41,050 second-born siblings where the first-borns did not have ASD, using IPIs of ≥36 months as the reference category and specifying three case groups. Case Group 1 included individuals with at least one ASD code (n = 490); Case Group 2 included those with two or more ASD codes (n = 375); and Case Group 3 comprised individuals with a record in the ASD surveillance program database (n = 141). RESULTS:The adjusted odds ratios (ORs) for IPIs shorter than 12 months ranged from 1.22 (95% CI: 0.91-1.63) for Case Group 1 to 1.72 (95% CI: 0.96-3.06) for Case Group 3. When the case groups were restricted to individuals with more severe ASD, the ORs increased and were significant for Case Groups 1 and 2.CONCLUSION: Our findings also support an association between short IPIs and more severe ASD.KEY WORDS: Autism; interpregnancy interval; secondary analysis; administrative data; record linkage; Manitoba Centre for Health Policy La traduction du résumé se trouve à la fin de l'article.

show abstract

The changing prevalence of autism in three regions of Canada

Cited by 58 publications

References 29 publications

The Bridges and Barriers Model of Support for High-Functioning Students with ASD in Mainstream Schools

The Bridges and Barriers Model of Support for High-Functioning Students with ASD in Mainstream Schools

Changes in Prevalence of Autism Spectrum Disorders in 2001–2011: Findings from the Stockholm Youth Cohort

The association between the interpregnancy interval and autism spectrum disorder in a Canadian cohort

Contact Info

Product

Resources

About