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Cognitive impairment in the nondemented elderly. Results from the Canadian Study of Health and Aging
Ebly EM, Hogan DB, Parhad IM.. Archives of neurology, 1995-06-01
Topic: Risk, prevention and care in population studies
Study objective To describe a population that was categorized as "cognitively impaired not demented" (CIND) and to examine the utility of some of the proposed criteria for describing this degree of cognitive impairment. Design Population-based prevalence study of dementia in those subjects who were 65 years and older. Setting Community and institutional settings in Canada.
Key findings
- Design Population-based prevalence study of dementia in those subjects who were 65 years and older.
- Setting Community and institutional settings in Canada.
- Subjects Individuals who underwent a clinical evaluation (N = 2914).
- Intervention Initial screening with the Modified Mini-Mental State Examination (3MS) to identify potential cognitive impairment; the 3MS was followed by a detailed clinical examination to confirm the presence of dementia and to determine the probable cause.
Why it matters
This population-based prevalence study described people categorized as cognitively impaired not demented and examined proposed criteria for this degree of cognitive impairment. It is descriptive research and does not test a treatment, cure, or prevention for Alzheimer's disease.
Study details
- Study designlongitudinal study
- Participants2,914
- Evidence strengthModerate
How this study scored 58/100
Published in a peer-reviewed journal, and it is a longitudinal study following the same people over time. Scored zero for effect reported and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Archives of neurology) |
| Journal's citation record | 3 / 4 | Archives of Neurology: journal h-index 353 (OpenAlex, 2026-10-29) |
| Study design | 7 / 12 | A longitudinal study following the same people over 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 | 1 / 5 | 1995 — older than 20 years, still counted |
| Sample size | 3 / 4 | 2,914 participants |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| 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 | 6 / 7 | Cited 315 times (OpenAlex, 2026-10-10) |
| Citations per year | 3 / 5 | 9.5 citations a year over 33 year(s) since 1995 |
| Impact for its field and year | 3 / 6 | Cited 4.9× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 3 / 6 | Cited by 20 other studies in this library |
| Still being cited | 1 / 4 | Cited 10 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 2 / 4 | Last-listed author Erika M. Ebly: h-index 20 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | University of Calgary: institution h-index 1,028 (OpenAlex) |
| Multi-centre collaboration | 0 / 3 | OpenAlex lists 1 institution(s) in 1 country — scores zero (affiliation lists can be incomplete) |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 7763211) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Total | 58 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
May need a subscription OpenAlex found no free copy of the full text (checked 6 Feb 1020), so the publisher may charge for it. The PubMed abstract is free.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
APA 7th
Ebly, E. M., Hogan, D. B., & Parhad, I. M. (1995). Cognitive impairment in the nondemented elderly. Results from the Canadian Study of Health and Aging. Archives of neurology. https://doi.org/10.1001/archneur.1995.00540300086018
Vancouver
Ebly EM, Hogan DB, Parhad IM. Cognitive impairment in the nondemented elderly. Results from the Canadian Study of Health and Aging. Archives of neurology. 1995. doi:10.1001/archneur.1995.00540300086018. PMID: 7763211.
BibTeX
@article{ebly1995-7763211,
author = {Ebly, E. M. and Hogan, D. B. and Parhad, I. M.},
title = {{Cognitive impairment in the nondemented elderly. Results from the Canadian Study of Health and Aging}},
journal = {Archives of neurology},
year = {1995},
doi = {10.1001/archneur.1995.00540300086018},
pmid = {7763211},
url = {https://doi.org/10.1001/archneur.1995.00540300086018}
}
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