The Mental and Physical Health Profiles of Older Adults Who Endorse Elevated Autistic Traits

Toward brief “red flags” for autism screening: The short autism spectrum quotient and the short quantitative checklist in 1,000 cases and 3,000 controls

Gavin R Stewart, Anne Corbett, Clive Ballard, Byron Creese, Dag Aarsland, Adam Hampshire, Rebecca A Charlton, Francesca Happé and Derek M Isaacowitz

The Journals of Gerontology: Series B, 2021, vol. 76, issue 9, 1726-1737

Abstract: ObjectivesThe mental and physical health profile of autistic people has been studied in adolescence and adulthood, with elevated rates of most conditions being reported. However, this has been little studied taking a dimensional approach to autistic traits and in older age.MethodsA total of 20,220 adults aged 50–81 years from the PROTECT study reported whether they experienced persistent sociocommunicative traits characteristic of autism. Approximately 1%, 276 individuals, were identified as endorsing elevated autistic traits in childhood and currently, henceforth the “Autism Spectrum Trait” (AST) group. An age- and gender-matched comparison group was formed of 10,495 individuals who did not endorse any autistic behavioral traits, henceforth the “Control Older Adults” (COA) group. Differences between AST and COA groups were explored in self-reported psychiatric diagnoses, self-reported symptoms of current depression and anxiety, and self-reported physical health diagnoses. Associations were also examined between autistic traits and health across the whole sample.ResultsThe AST group reported significantly elevated rates of psychiatric diagnoses compared to the COA group. Additionally, the AST group showed significantly higher self-reported symptoms of current depression and anxiety than the COA group. However, few differences were observed in individual physical health conditions, and no differences in total co-occurring physical diagnoses between groups. Similar associations between autistic traits and health were also found taking a dimensional approach across the whole sample.DiscussionThese findings suggest that older adults with elevated autistic traits may be at greater risk of poorer mental, but not physical, health in later life. Future studies should incorporate polygenic scores to elucidate the possible genetic links between the propensity to autism/high autistic traits and to psychiatric conditions, and to explore whether those with elevated autistic traits experience particular barriers to mental health care.

Keywords: ASD; Autistic traits; Mental health; Physical health (search for similar items in EconPapers)
Date: 2021
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