Evidence map›Paper›PMID 33874886›Full record

ArticleJournal of neurodevelopmental disorders2021

Capturing cognitive and behavioral variability among individuals with Down syndrome: a latent profile analysis.

Marie Moore Channell, Laura J Mattie, Debra R Hamilton, George T Capone, E Mark Mahone, Stephanie L Sherman, Tracie C Rosser, Roger H Reeves, Luther G Kalb, Down Syndrome Cognition Project

Abstract read
In one paragraph

Article in Journal of neurodevelopmental disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Cognitive Predictors of Adaptive Behaviour in Children With Down Syndrome: A Systematic Review.Journal of applied research in intellectual disabilities : JARID · 2026
    Pooled it
  2. Trial
  3. Article
  4. Psychosocial Difficulties Profiles Among Youth with Intellectual Disabilities.Journal of autism and developmental disorders · 2025
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  19. Mental State Language Development in Children With Down Syndrome Versus Typical Development.American journal on intellectual and developmental disabilities · 2022
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Marie Moore Channell *University of Illinois at Urbana-Champaign, 901 S. Sixth St, Champaign, IL, 61820, USA. channell@illinois.edu.ORCID 0000-0002-4175-0006
Laura J Mattie *University of Illinois at Urbana-Champaign, 901 S. Sixth St, Champaign, IL, 61820, USA.
Debra R HamiltonEmory University, 615 Michael St, Atlanta, GA, 30322, USA.
George T CaponeKennedy Krieger Institute, 801 N Broadway, Baltimore, MD, 21205, USA.
E Mark MahoneKennedy Krieger Institute, 1750 E. Fairmount Ave, Baltimore, MD, 21231, USA.
Stephanie L ShermanEmory University, 615 Michael St, Atlanta, GA, 30322, USA.
Tracie C RosserEmory University, 615 Michael St, Atlanta, GA, 30322, USA.
Roger H ReevesJohns Hopkins School of Medicine, 725 N Washington St, Baltimore, MD, 21205, USA.
Luther G KalbKennedy Krieger Institute, Johns Hopkins School of Public Health, 3901 Greenspring Avenue, Baltimore, MD, 21211, USA.
Down Syndrome Cognition Project

Funding

Sleep and Circadian Dysfunction, Brain and Neurobehavioral Development in AutismP50HD103538 · NICHD · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI S. Ali Fatemi, Bradley L Schlaggar · 2020 to 2026
$9.9M
Translational Neuroscience CoreU54HD079123 · NICHD · HUGO W. MOSER RES INST KENNEDY KRIEGER · PI FATEMI, S. ALI, SCHLAGGAR, BRADLEY L · 2014 to 2019
$7.9M
NICHD NIH HHS P50 HD103538NICHD NIH HHS U54 HD079123
6 · The paper itself

Abstract

backgroundThere is a high degree of inter- and intra-individual variability observed within the phenotype of Down syndrome. The Down Syndrome Cognition Project was formed to capture this variability by developing a large nationwide database of cognitive, behavioral, health, and genetic information on individuals with Down syndrome, ages 6-25 years. The current study used the Down Syndrome Cognition Project database to characterize cognitive and behavioral variability among individuals with Down syndrome.

methodsLatent profile analysis was used to identify classes across a sample of 314 participants based on their cognition (IQ and executive functioning), adaptive and maladaptive behavior, and autism spectrum disorder symptomatology. A multivariate multinomial regression model simultaneously examined demographic correlates of class.

resultsResults supported a 3-class model. Each class demonstrated a unique profile across the subdomains of cognition and behavior. The "normative" class was the largest (n = 153, 48%) and displayed a relatively consistent profile of cognition and adaptive behavior, with low rates of maladaptive behavior and autism symptomatology. The "cognitive" class (n = 109, 35%) displayed low cognitive scores and adaptive behavior and more autism symptomatology, but with low rates of maladaptive behavior. The "behavioral" class, the smallest group (n = 52, 17%), demonstrated higher rates of maladaptive behavior and autism symptomatology, but with cognition levels similar to the "normative" class; their adaptive behavior scores fell in between the other two classes. Household income and sex were the only demographic variables to differ among classes.

conclusionsThese findings highlight the importance of subtyping the cognitive and behavioral phenotype among individuals with Down syndrome to identify more homogeneous classes for future intervention and etiologic studies. Results also demonstrate the feasibility of using latent profile analysis to distinguish subtypes in this population. Limitations and future directions are discussed.

Indexed as

Down SyndromeAdaptation, PsychologicalAdolescentAdultAutism Spectrum DisorderChildCognitionExecutive FunctionFemaleHumansMaleYoung AdultAdaptive behaviorAutism symptomatologyCognitionDown syndromeIntellectual disabilityLatent profile analysisMaladaptive behaviorPhenotypes

Identifiers

PMID33874886
PMCPMC8056665

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.