Incidence of Autism Spectrum Disorders Underestimated

A total of 2.64 percent of South Korean school children found to have autism spectrum disorders

MONDAY, May 9 (HealthDay News) -- Autism spectrum disorders (ASD) may be more prevalent in children than previously estimated and are found in children in mainstream schools as well as special education schools, according to a study published online May 9 in The American Journal of Psychiatry.

Young Shin Kim, M.D., Ph.D., from the Yale University School of Medicine in New Haven, Conn., and colleagues estimated the prevalence of ASD in 55,266 children aged 7 to 12 years in a South Korean community, and described its clinical characteristics. ASD was identified using the Autism Spectrum Screening Questionnaire for systematic, multi-informant screening in a high-probability group from special education schools and a disability registry and a low-probability, general-population sample from regular schools. Comprehensive evaluations using standardized diagnostic procedures were offered to parents of children who screened positive.

The investigators estimated that the total ASD prevalence of 2.64 percent included 1.89 percent from the general-population and 0.75 percent from the high-probability group. The ASD male-to-female ratios were 2.5:1 and 5.1:1 in the general and high-probability groups, respectively. The ratios of autistic disorders to other ASD subtypes were 1:2.6 and 2.6:1 in the general population and high probability groups, respectively. Superior IQs were seen in 12 percent of children in the general-population sample and 7 percent in the high-probability group, and intellectual disability was found in 16 percent of children in the general-population sample and 59 percent in the high-probability group.

"There is a striking difference between our estimated prevalence of 2.64 percent for any ASD and previously reported estimates ranging from 0.6 to 1.8 percent," the authors write.

Several authors have served as expert witnesses for autism vaccine trials for the U.S. Departments of Health and of Justice, and for GlaxoSmithKline.

Abstract
Full Text

Copyright © 2011 HealthDay. All rights reserved.

Powered by

jQuery UI Accordion - Default functionality

For life-long learning and continuing professional development, come to Lippincott's NursingCenter.

Nursing Jobs Plus
Featured Jobs
Recommended CE Articles

Blunt Chest Trauma
Journal of Trauma Nursing, November/December 2014
Expires: 12/31/2016 CE:2 $21.95


The School Age Child with Congenital Heart Disease
MCN, The American Journal of Maternal/Child Nursing, January/February 2015
Expires: 2/28/2017 CE:2.5 $24.95


Understanding multiple myeloma
Nursing Made Incredibly Easy!, January/February 2015
Expires: 2/28/2017 CE:2 $21.95


More CE Articles

Subscribe to Recommended CE

Recommended Nursing Articles

Comprehensive Care: Looking Beyond the Presenting Problem
Journal of Christian Nursing, January/March 2015
Free access will expire on March 2, 2015.


Pain and Alzheimer dementia: A largely unrecognized problem
Nursing Made Incredibly Easy!, January/February 2015
Free access will expire on February 16, 2015.


Glycemic control in hospitalized patients
Nursing2015 Critical Care, January 2015
Free access will expire on February 16, 2015.


More Recommended Articles

Subscribe to Recommended Articles

Evidence Based Practice Skin Care Network NursingCenter Quick Links What’s Trending Events