Associations of Down Syndrome with Autism Spectrum Disorder and Attention Deficit/ Hyperactivity Disorder Among Children and Adolescents.

Children with Down syndrome (DS) are more likely to be diagnosed with co-existing conditions, such as autism spectrum disorder (ASD) and attention deficit/hyperactivity disorder (ADHD). However, the correlation has not been fully delineated to date. Our study aimed to examine the associations of DS...

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Published in:Journal of Autism & Developmental Disorders Vol. 56; no. 10; pp. 4001 - 4010
Main Authors: Wang, Xin, Wang, Chunhua, Lin, Lizi, Bao, Wei, Liu, Buyun, Lin, Baihua, Zhang, Lijie, Xu, Guifeng
Format: research tables/charts Journal Article
Published: Springer Nature Oct2026
Online Access:View this record in EBSCOhost
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      dt: Oct2026
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      pub: Springer Nature
      place: New York, New York
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        10.1007/s10803-025-06834-8
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        atl: Associations of Down Syndrome with Autism Spectrum Disorder and Attention Deficit/ Hyperactivity Disorder Among Children and Adolescents.
      aug:
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          Wang, Xin
          Wang, Chunhua
          Lin, Lizi
          Bao, Wei
          Liu, Buyun
          Lin, Baihua
          Zhang, Lijie
          Xu, Guifeng
        affil: https://ror.org/01kq0pv72 Key Laboratory of Brain, Cognition and Education Sciences, Institute for Brain Research and Rehabilitation, Guangdong Key Laboratory of Mental Health and Cognitive Science, Ministry of Education, South China Normal University, 510631, Guangzhou, China
      sug:
        subj:
          Down Syndrome Complications
          Autism Spectrum Disorder Risk Factors
          Attention Deficit Hyperactivity Disorder Risk Factors
          Risk Assessment
          Human
          Cross Sectional Studies
          Child
          Child, Preschool
          Adolescence
          Surveys
          Descriptive Statistics
          Logistic Regression
          Odds Ratio
          Confidence Intervals
          Male
          Female
          Comorbidity Risk Factors
          United States
          Sex Factors
          Funding Source
          Child: 6-12 years
          Child, Preschool: 2-5 years
          Adolescent: 13-18 years
          Male
          Female
      ab: Children with Down syndrome (DS) are more likely to be diagnosed with co-existing conditions, such as autism spectrum disorder (ASD) and attention deficit/hyperactivity disorder (ADHD). However, the correlation has not been fully delineated to date. Our study aimed to examine the associations of DS with ASD and ADHD in children and adolescents using a national population-based database. In this cross-sectional study, we included a total of 214,300 children aged 3–17 years from the National Health Interview Survey. Physician-diagnosed DS, ASD and ADHD were reported during an in-person household interview. Logistic regression with survey sampling weights was used to estimate the odds ratios (ORs) of ASD and ADHD, along with 95% confidence intervals (CIs). Among the 214,300 children, 329 were identified as having DS. Among those, 21 children were diagnosed with ASD, 48 with ADHD, and 6 exhibited co-existing ASD and ADHD. After adjusting for demographic factors, compared to those without DS, the ORs of ASD, ADHD and the co-occurrence of ASD and ADHD in children with DS were 5.40 (95% CI: 3.04–9.59), 1.72 (95% CI: 1.17–2.53), and 3.45(95% CI:1.29–9.20), respectively. Stratified analysis revealed that significant associations of DS with ASD and ADHD were detected for both male and female, but an interaction effect was only observed between sex and ASD (P < 0.001). Our study confirmed that children with DS are more likely to have comorbidities of ASD and ADHD than the general population, and these comorbidities may vary by sex.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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