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52/100

✓ Peer-reviewed alzhub usefulness score 52 out of 100. Cognitive tests and assessment

Topic: Risk, prevention and care in population studies

In 893 participants with average age 93 years (range 90-102), 43 % had SMC. Cross-sectionally, SMC were associated with lower scores on memory, language, executive function. After 3.5 years of follow-up (range 0.4-16), 325 of 789 participants developed dementia. SMC, compared with no SMC, was associated with twice the risk of incident dementia (HR=2.16, 95 %CI, 1.72-2.72; p < 0.01). SMC predicted incident dementia as well as MMSE (p = 0.12), but not as well as cognitive diagnosis (p < 0.01). Single SMC question might be useful to identify oldest old with cognitive impairment or at risk of dementia.

Cite this study APA, Vancouver, BibTeX · download .bib or .ris

APA 7th

Melikyan, Z. A., Aguirre, C., Al‐Darsani, Z., Colcord, K. A., Paganini‐Hill, A., Farias, S. T., et al. (2025). Subjective memory complaints at age 90 + in relation to cognition and risk of incident dementia: The 90 + Study. International Psychogeriatrics. https://doi.org/10.1016/j.inpsyc.2025.100083

Vancouver

Melikyan ZA, Aguirre C, Al‐Darsani Z, Colcord KA, Paganini‐Hill A, Farias ST, et al. Subjective memory complaints at age 90 + in relation to cognition and risk of incident dementia: The 90 + Study. International Psychogeriatrics. 2025. doi:10.1016/j.inpsyc.2025.100083. PMID: 40340138.

BibTeX

@article{melikyan2025-40340138,
  author  = {Melikyan, Zarui A. and Aguirre, Colette and Al‐Darsani, Zeinah and Colcord, Katherine A. and Paganini‐Hill, Annlia and Farias, Sarah Tomaszewski and Jiang, Luohua and Kawas, Claudia H. and others},
  title   = {{Subjective memory complaints at age 90 + in relation to cognition and risk of incident dementia: The 90 + Study}},
  journal = {International Psychogeriatrics},
  year    = {2025},
  doi     = {10.1016/j.inpsyc.2025.100083},
  pmid    = {40340138},
  url     = {https://doi.org/10.1016/j.inpsyc.2025.100083}
}

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Key findings

In 893 participants with average age 93 years (range 90-102), 43 % had SMC.
Cross-sectionally, SMC were associated with lower scores on memory, language, executive function.
After 3.5 years of follow-up (range 0.4-16), 325 of 789 participants developed dementia.
SMC, compared with no SMC, was associated with twice the risk of incident dementia (HR=2.16, 95 %CI, 1.72-2.72; p < 0.01).
SMC predicted incident dementia as well as MMSE (p = 0.12), but not as well as cognitive diagnosis (p < 0.01).

Why it matters

In people aged 90 and older, having subjective memory complaints was linked to about twice the risk of developing dementia over roughly 3.5 years. A single question about memory complaints might help identify the oldest old who have cognitive impairment or are at risk of dementia.

Study details

Study designcross-sectional
Participants893
Effect sizeHR=2.16
Evidence strengthModerate

How this study scored 52/100

Published in a peer-reviewed journal, and it is a snapshot of people at one point in time. Scored zero for randomised / blinded because the record does not state it.

Component	Points	Why
Journal tier	7 / 10	Tier 3 — peer-reviewed journal (International Psychogeriatrics)
Journal's citation record	2 / 4	International Psychogeriatrics: journal h-index 161 (OpenAlex, 2026-10-29)
Study design	4 / 12	A snapshot of people at one point in time
Strength of evidence	3 / 5	Rated “moderate” 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	2 / 4	893 participants
Effect reported	3 / 3	Effect reported with a statistic (interval, p-value, ratio or similar)
Studied in people	3 / 3	Studied in people (participant count stated)
Randomised / blinded	0 / 2	No randomisation or blinding stated — scores zero (not stated in the record — scored 0)
Times cited	1 / 7	Cited 3 times (OpenAlex, 2026-10-10)
Citations per year	1 / 5	1.0 citations a year over 3 year(s) since 2025
Impact for its field and year	2 / 6	Cited 1.9× 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	1 / 4	Cited 3 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record	3 / 4	Last-listed author María M. Corrada: h-index 55 (OpenAlex, whole career)
Institution's track record	1 / 3	University of California, Davis: institution h-index 1,257 (OpenAlex)
Multi-centre collaboration	1 / 3	OpenAlex lists 2 institution(s) in 1 country
Indexed in PubMed	2 / 2	Indexed in PubMed (PMID 40340138)
Free to read	2 / 2	Free to read
Total	52 / 100	—

What each of these 20 components measures, and what this score is not →

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