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Mapping scores onto stages: mini-mental state examination and clinical dementia rating
Perneczky R, Wagenpfeil S, Komossa K, Grimmer T, Diehl J, Kurz A.. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry, 2006-02-01
Topic: Risk, prevention and care in population studies
Objective Although the clinical course of Alzheimer disease (AD) is gradual, it is useful for a number of reasons to distinguish between different levels of severity. The Clinical Dementia Rating (CDR) has demonstrated high validity and reliability for this purpose, but it requires a considerable amount of data to be collected both from the patient and from an informant. In the present study, the authors mapped Mini-Mental State Examination (MMSE) scores onto CDR categories to determine how well the MMSE performs as a surrogate of the CDR as a timesaving method of staging dementia.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Perneczky, R., Wagenpfeil, S., Komossa, K., Grimmer, T., Diehl, J., & Kurz, A. (2006). Mapping scores onto stages: mini-mental state examination and clinical dementia rating. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry. https://doi.org/10.1097/01.jgp.0000192478.82189.a8
Vancouver
Perneczky R, Wagenpfeil S, Komossa K, Grimmer T, Diehl J, Kurz A. Mapping scores onto stages: mini-mental state examination and clinical dementia rating. The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry. 2006. doi:10.1097/01.jgp.0000192478.82189.a8. PMID: 16473978.
BibTeX
@article{perneczky2006-16473978,
author = {Perneczky, R. and Wagenpfeil, S. and Komossa, K. and Grimmer, T. and Diehl, J. and Kurz, A.},
title = {{Mapping scores onto stages: mini-mental state examination and clinical dementia rating}},
journal = {The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry},
year = {2006},
doi = {10.1097/01.jgp.0000192478.82189.a8},
pmid = {16473978},
url = {https://doi.org/10.1097/01.jgp.0000192478.82189.a8}
}
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.
Key findings
- The Clinical Dementia Rating (CDR) has demonstrated high validity and reliability for this purpose, but it requires a considerable amount of data to be collected both from the patient and from an informant.
- In the present study, the authors mapped Mini-Mental State Examination (MMSE) scores onto CDR categories to determine how well the MMSE performs as a surrogate of the CDR as a timesaving method of staging dementia.
- Method Eight hundred sixty-three probands, including 524 patients with probable AD, 92 patients with questionable dementia, and 247 with memory complaints but no objective cognitive impairment, were included.
- Cutoff scores were identified on one-half of the sample using a receiver operating characteristic analysis.
Why it matters
This study mapped Mini-Mental State Examination scores onto Clinical Dementia Rating categories to see how well the MMSE works as a timesaving way of staging dementia. It concerns staging and assessment, not treating, curing, or preventing Alzheimer's disease.
Study details
- Participants524
- Evidence strengthLow
How this study scored 52/100
Published in a peer-reviewed journal. Scored zero for study design, effect reported and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry) |
| Journal's citation record | 2 / 4 | American Journal of Geriatric Psychiatry: journal h-index 178 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| 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 | 1 / 5 | 2006 — older than 20 years, still counted |
| Sample size | 2 / 4 | 524 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 764 times (OpenAlex, 2026-10-10) |
| Citations per year | 4 / 5 | 34.7 citations a year over 22 year(s) since 2006 |
| Impact for its field and year | 4 / 6 | Cited 9.6× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 3 / 6 | Cited by 29 other studies in this library |
| Still being cited | 3 / 4 | Cited 162 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 3 / 4 | Last-listed author Alexander Kurz: h-index 65 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | Technical University of Munich: institution h-index 1,092 (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 16473978) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Total | 52 / 100 | — |
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