The Incidence and Prevalence of Dementia Among Ontario Adults With and Without Intellectual and Developmental Disabilities

IF 3.6 3区医学 Q2 GERIATRICS & GERONTOLOGY International Journal of Geriatric Psychiatry Pub Date : 2025-02-12 DOI:10.1002/gps.70050

Prachi Patel, Winnie Sun, Andrea Mataruga, Kinwah Fung, Robert Balogh

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Abstract

Objectives

There are more than 66,000 Ontario adults living with intellectual and developmental disabilities (IDD). While the risk of dementia is well established among those with Down Syndrome (DS), there is limited research in persons with IDD excluding DS (Non-DS IDD). This study aimed to compare the incidence and prevalence of dementia in Ontario adults with and without IDD over time and by demographic information.

Methods

Administrative data were used to calculate and compare the annual age- and sex-adjusted cumulative incidence and period prevalence of dementia from fiscal years 2011/12 to 2020/21 in three cohorts: (1) Non-DS IDD, (2) DS, and (3) No IDD.

Results

Compared to persons without IDD, cumulative incidence of dementia was on average 4.27 and 5.33 times higher in persons with Non-DS IDD and DS respectively and period prevalence of dementia was on average 4.87 and 5.93 times higher in persons with Non-DS IDD and DS respectively.

Conclusions

Given the increased rates of dementia within the IDD population, it is imperative that early dementia screening take place, appropriate health and social services are implemented and more actions are taken to delay the onset of dementia, while considering the needs of this population.

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来源期刊

International Journal of Geriatric Psychiatry 医学-精神病学

CiteScore

6.10

自引率

2.50%

发文量

168

审稿时长

4-8 weeks

期刊介绍： The rapidly increasing world population of aged people has led to a growing need to focus attention on the problems of mental disorder in late life. The aim of the Journal is to communicate the results of original research in the causes, treatment and care of all forms of mental disorder which affect the elderly. The Journal is of interest to psychiatrists, psychologists, social scientists, nurses and others engaged in therapeutic professions, together with general neurobiological researchers. The Journal provides an international perspective on the important issue of geriatric psychiatry, and contributions are published from countries throughout the world. Topics covered include epidemiology of mental disorders in old age, clinical aetiological research, post-mortem pathological and neurochemical studies, treatment trials and evaluation of geriatric psychiatry services.