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Potentially inappropriate medications related to two-year progression of mild cognitive impairment and dementia
Hege Kersten, Maria Lage Barca, Rannveig Sakshaug Eldholm, Karin Persson, Lara Thomasgaard, Keson Jaioun, Ingvild Tina Saltvedt, Geir Selbæk et al.. European Journal of Clinical Pharmacology, 2026-01-19
Topic: Risk, prevention and care in population studies
The prevalence of PIMcogs increased from 16% at baseline to 23% at follow-up. PIMcog users were more likely to be women (63.5%), and they used more drugs, with a median of 5 drugs at baseline and 4 drugs at follow-up, compared to non-users who had a median of 3 used drugs at both time points. PIMcog users had higher median Neuropsychiatric Inventory severity sum scores (6 [3.0–11.0] versus 4.0 [2.0–7.0]) and median Cornell Scale for Depression in Dementia scores (6.5 [3.0–11.0] versus 4.0 [1.0–7.0]) compared to non-users at follow-up (p ≤ 0.002). PIMcog users exhibited more severe dementia, with a Clinical Dementia Rate-Sum of Boxes (CDR-SB) score of 7.0 (4.0–13.0) compared to 6.0 (3.5–10.0) in non-users. The median annual increase in CDR-SB was one unit, and PIMcog use at follow-up was significantly associated with more rapid progression of dementia severity. Faster dementia progression was documented among PIMcog users although, the prevalence of PIMcogs was generally low in Norwegian memory clinic patients with cognitive impairments.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Kersten, H., Barca, M. L., Eldholm, R. S., Persson, K., Thomasgaard, L., Jaioun, K., et al. (2026). Potentially inappropriate medications related to two-year progression of mild cognitive impairment and dementia. European Journal of Clinical Pharmacology. https://doi.org/10.1007/s00228-025-03977-6
Vancouver
Kersten H, Barca ML, Eldholm RS, Persson K, Thomasgaard L, Jaioun K, et al. Potentially inappropriate medications related to two-year progression of mild cognitive impairment and dementia. European Journal of Clinical Pharmacology. 2026. doi:10.1007/s00228-025-03977-6. PMID: 41553533.
BibTeX
@article{kersten2026-41553533,
author = {Kersten, Hege and Barca, Maria Lage and Eldholm, Rannveig Sakshaug and Persson, Karin and Thomasgaard, Lara and Jaioun, Keson and Saltvedt, Ingvild Tina and Selbæk, Geir and others},
title = {{Potentially inappropriate medications related to two-year progression of mild cognitive impairment and dementia}},
journal = {European Journal of Clinical Pharmacology},
year = {2026},
doi = {10.1007/s00228-025-03977-6},
pmid = {41553533},
url = {https://doi.org/10.1007/s00228-025-03977-6}
}
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 prevalence of PIMcogs increased from 16% at baseline to 23% at follow-up.
- PIMcog users were more likely to be women (63.5%), and they used more drugs, with a median of 5 drugs at baseline and 4 drugs at follow-up, compared to non-users who had a median of 3 used drugs at both time points.
- PIMcog users had higher median Neuropsychiatric Inventory severity sum scores (6 [3.0–11.0] versus 4.0 [2.0–7.0]) and median Cornell Scale for Depression in Dementia scores (6.5 [3.0–11.0] versus 4.0 [1.0–7.0]) compared to non-users at follow-up (p ≤ 0.002).
- PIMcog users exhibited more severe dementia, with a Clinical Dementia Rate-Sum of Boxes (CDR-SB) score of 7.0 (4.0–13.0) compared to 6.0 (3.5–10.0) in non-users.
- The median annual increase in CDR-SB was one unit, and PIMcog use at follow-up was significantly associated with more rapid progression of dementia severity.
Why it matters
Use of potentially inappropriate medications for cognition at follow-up was significantly associated with more rapid progression of dementia severity. This is an observational association and does not test any treatment, cure or prevention.
Study details
- Participants397
- Effect size63.5%
- Evidence strengthLow
How this study scored 49/100
Published in a peer-reviewed journal. Scored zero for study design and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (European Journal of Clinical Pharmacology) |
| Journal's citation record | 2 / 4 | European Journal of Clinical Pharmacology: journal h-index 161 (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 | 5 / 5 | 2026 — within 1 year(s) of the newest study here |
| Sample size | 2 / 4 | 397 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) |
| 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 | 1.5 citations a year over 2 year(s) since 2026 |
| Impact for its field and year | 4 / 6 | Cited 11.8× 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 Knut Engedal: h-index 72 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | University of Oslo: institution h-index 1,024 (OpenAlex) |
| Multi-centre collaboration | 2 / 3 | OpenAlex lists 7 institution(s) in 1 country |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 41553533) |
| Free to read | 2 / 2 | Free to read |
| Total | 49 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
- DOI: 10.1007/s00228-025-03977-6
- PubMed: 41553533
- Original source →
- Free full text: European Journal of Clinical Pharmacology →
Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
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