Prevalence of dementia in Singapore: Changes across a decade

IF 11.1 1区医学 Q1 CLINICAL NEUROLOGY Alzheimer's & Dementia Pub Date : 2025-01-27 DOI:10.1002/alz.14485

Mythily Subramaniam, Edimansyah Abdin, PV Asharani, Kumarasan Roystonn, Fiona Devi, Wang Peizhi, Saleha Shafie, Vathsala Sagayadevan, Anitha Jeyagurunathan, Boon Yiang Chua, Bernard Tan, Janhavi Ajit Vaingankar, Fengyuan Yao, Harish Magadi, Stefan Ma, Wai Leng Chow, Paul McCrone, Derrick Heng, Rathi Mahendran, Martin Prince, Li Ling Ng, Siow Ann Chong

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Abstract

INTRODUCTION

The study aimed to assess changes in the prevalence of dementia in Singapore over the past decade.

METHODS

The Well-being of the Singapore Elderly (WiSE) 2023 and the WiSE 2013 studies were comprehensive, single-phase, cross-sectional surveys conducted among older adults aged ≥60 years in Singapore. WiSE 2023 included 2010 older adults and 1798 informants, whereas WiSE 2013 comprised 2565 older adults and 2421 informants.

RESULTS

The weighted prevalence of dementia based on the 10/66 Diagnostic Research Group (DRG) criteria was 8.8% (95% confidence interval [CI]: 7.3–10.7) in the WiSE 2023 study compared to 10% in the WiSE 2013 study (95% CI: 8.7–11.5). The proportion of those with undiagnosed dementia decreased significantly from 70.6% in WiSE 2013 to 51.5% in WiSE 2023 (p-value = 0.002).

DISCUSSION

A non-significant 12% reduction (95% CI: 1.1–3.5) in dementia prevalence was observed in Singapore over a decade, based on the WiSE 2013 and WiSE 2023 studies.

Highlights

The prevalence of dementia decreased from 10% to 8.8% over a decade in Singapore.
The prevalence varied by age group, ethnicity, employment status, and health factors.
The prevalence of undiagnosed dementia decreased significantly from 70.6% to 51.5%.

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来源期刊

Alzheimer's & Dementia 医学-临床神经学

CiteScore

14.50

自引率

5.00%

发文量

299

审稿时长

3 months

期刊介绍： Alzheimer's & Dementia is a peer-reviewed journal that aims to bridge knowledge gaps in dementia research by covering the entire spectrum, from basic science to clinical trials to social and behavioral investigations. It provides a platform for rapid communication of new findings and ideas, optimal translation of research into practical applications, increasing knowledge across diverse disciplines for early detection, diagnosis, and intervention, and identifying promising new research directions. In July 2008, Alzheimer's & Dementia was accepted for indexing by MEDLINE, recognizing its scientific merit and contribution to Alzheimer's research.