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Prevalence of dementia in Singapore: Changes across a decade
Mythily Subramaniam, Edimansyah Abdin, P. V. Asharani, Kumarasan Roystonn, Fiona Devi, Peizhi Wang, Saleha Shafie, Vathsala Sagayadevan et al.. Alzheimer s & Dementia, 2025-01-27
Topic: Risk, prevention and care in population studies
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). 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%.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Subramaniam, M., Abdin, E., Asharani, P. V., Roystonn, K., Devi, F., Wang, P., et al. (2025). Prevalence of dementia in Singapore: Changes across a decade. Alzheimer s & Dementia. https://doi.org/10.1002/alz.14485
Vancouver
Subramaniam M, Abdin E, Asharani PV, Roystonn K, Devi F, Wang P, et al. Prevalence of dementia in Singapore: Changes across a decade. Alzheimer s & Dementia. 2025. doi:10.1002/alz.14485. PMID: 39868432.
BibTeX
@article{subramaniam2025-39868432,
author = {Subramaniam, Mythily and Abdin, Edimansyah and Asharani, P. V. and Roystonn, Kumarasan and Devi, Fiona and Wang, Peizhi and Shafie, Saleha and Sagayadevan, Vathsala and others},
title = {{Prevalence of dementia in Singapore: Changes across a decade}},
journal = {Alzheimer s \& Dementia},
year = {2025},
doi = {10.1002/alz.14485},
pmid = {39868432},
url = {https://doi.org/10.1002/alz.14485}
}
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. The record's author list ends in “et al.”, so not every author is named. Check the citation against the original before you use it.
Key findings
- 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).
- 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.
Why it matters
Dementia prevalence in Singapore fell from 10% to 8.8% over a decade, but this 12% reduction was not statistically significant. The proportion of undiagnosed dementia dropped significantly from 70.6% to 51.5%, suggesting better detection over time.
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Study details
- Study designcross-sectional
- Participants2,010
- Effect size8.8%; 70.6%; 51.5%
- Evidence strengthLow
How this study scored 57/100
Published in a peer-reviewed journal, and it is a snapshot of people at one point in time. Scored zero for randomized / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Alzheimer s & Dementia) |
| Journal's citation record | 2 / 4 | Alzheimer s & Dementia: journal h-index 228 (OpenAlex, 2026-10-29) |
| Study design | 4 / 12 | A snapshot of people at one point in time |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 4 / 5 | 2025 — within 3 year(s) of the newest study here |
| Sample size | 3 / 4 | 2,010 participants |
| Effect reported | 2 / 3 | Effect reported as a number, without an interval or test |
| Studied in people | 3 / 3 | Studied in people (participant count stated) |
| Randomized / blinded | 0 / 2 | No randomization or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 3 / 7 | Cited 23 times (OpenAlex, 2026-10-10) |
| Citations per year | 2 / 5 | 7.7 citations a year over 3 year(s) since 2025 |
| Impact for its field and year | 4 / 6 | Cited 14.6× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 0 / 6 | No other study in this library cites it |
| Still being cited | 2 / 4 | Cited 23 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 3 / 4 | Last-listed author Siow Ann Chong: h-index 64 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | King's College London: institution h-index 1,348 (OpenAlex) |
| Multicenter collaboration | 2 / 3 | OpenAlex lists 6 institution(s) in 2 countries |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 39868432) |
| Free to read | 2 / 2 | Free to read |
| Total | 57 / 100 | — |
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Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
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