Journal of applied research in intellectual disabilities : JARID · 2026
Adaptive and Maladaptive Behaviours and Their Cognitive Correlates in Aging Adults With Down Syndrome.
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Yang Yingying, Conde Sonia, Bhullar Romal, Alzheimer's Biomarker Consortium on Down Syndrome Stud
Аннотация
BACKGROUND: Longer life expectancy in Down syndrome (DS) has shifted concern to age-related declines in everyday functioning. Adaptive and maladaptive behaviours are pivotal to quality of life, yet little is known about their patterns in older adults with DS.
METHOD: Data from 259 cognitively stable adults (25-72 year) in the Alzheimer's Biomarkers Consortium-DS were analysed. Adaptive behaviour (Vineland-3) and maladaptive behaviour (Reiss Screen) were analysed and then regressed on age, intellectual disability level, and cognitive tests.
RESULTS: Higher age and greater disability predicted poorer adaptive functioning, but effects waned after cognition was included. General cognition, cued-recall memory, and inhibitory control independently predicted adaptive skills. Maladaptive behaviours were rare, lacked cognitive or demographic predictors, and correlated negatively with adaptive scores.
CONCLUSIONS: By identifying strengths, vulnerabilities, and predictors of behavioural functioning, this study offers insight into future clinical and caregiving strategies for aging adults with DS.
METHOD: Data from 259 cognitively stable adults (25-72 year) in the Alzheimer's Biomarkers Consortium-DS were analysed. Adaptive behaviour (Vineland-3) and maladaptive behaviour (Reiss Screen) were analysed and then regressed on age, intellectual disability level, and cognitive tests.
RESULTS: Higher age and greater disability predicted poorer adaptive functioning, but effects waned after cognition was included. General cognition, cued-recall memory, and inhibitory control independently predicted adaptive skills. Maladaptive behaviours were rare, lacked cognitive or demographic predictors, and correlated negatively with adaptive scores.
CONCLUSIONS: By identifying strengths, vulnerabilities, and predictors of behavioural functioning, this study offers insight into future clinical and caregiving strategies for aging adults with DS.