Dementia in people with intellectual disability

Insights and challenges in epidemiological research with an at-risk population

Elizabeth Evans, Anjali Bhardwaj, Henry Brodaty, Perminder Sachdev, Brian Draper, Julian N. Trollor*

*Corresponding author for this work

Research output: Contribution to journalReview article

4 Citations (Scopus)


The population with intellectual disability (ID) is ageing, but age-related health concerns such as dementia have received little research attention thus far. We review evidence regarding the prevalence and incidence of dementia in people with ID, and discuss some possible explanations for an increased risk, such as shared genetic risk factors, co-morbid physical and mental disorders, lifestyle factors, trauma, and lowered brain reserve. We discuss practical and theoretical challenges facing researchers in this field, before highlighting the implications of findings to date for future research and clinical care. Research on dementia in this at-risk population has the potential to help us understand dementia in general and to improve services for this group of vulnerable individuals.

Original languageEnglish
Pages (from-to)755-763
Number of pages9
JournalInternational Review of Psychiatry
Issue number6
Publication statusPublished - Dec 2013
Externally publishedYes

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