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Research Letter
November 6, 2018

Cumulative Incidence of Autism Into Adulthood for Birth Cohorts in Denmark, 1980-2012

Author Affiliations
  • 1Lundbeck Foundation Initiative for Integrative Psychiatric Research (iPSYCH), Aarhus University, Aarhus, Denmark
JAMA. 2018;320(17):1811-1813. doi:10.1001/jama.2018.11328

The Centers for Disease Control and Prevention recently reported an autism prevalence of 1.68% among 8-year-old children in the United States in 2014,1 which is 14% higher than the reported rate for 8-year-old children in 2012 and 2010.2,3 Autism prevalence rates of 2% and 2.47% in school-aged children were previously estimated from parent report data in US national health surveys.4,5 These cross-sectional data may suggest that autism spectrum disorder (ASD) prevalence is reaching a peak. However, longitudinal data with follow-up into adulthood are needed to truly determine whether the prevalence has stabilized.

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