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47/100

✓ Peer-reviewed alzhub usefulness score 47 out of 100. Health systems and care delivery

Topic: Risk, prevention and care in population studies

Among TM enrollees, prevalence of dementia was lower by 4% points in 2014 (9.0%, 95%CI: 7.8%, 9.3%) compared to 2000 (13.0%, 95%CI: 12%, 14%). The prevalence of dementia in MA was higher by 2% points in 2014 (10.0%, 95%CI: 8.5%, 11%) compared to 2000 (8.0%, 95% CI: 7.2%, 9.7%). Prevalence of dementia in MA remained stable for Whites non-Hispanic, was 2% points higher for Blacks non-Hispanic, and 5% points higher for Hispanics in 2014 compared to 2000. MA compared to TM beneficiaries with dementia in 2014 were younger (mean [SE] 81.6 [0.5] vs. 83.5 [0.4]), had fewer activity of daily living limitations (1.9 [0.1] vs. 2.4 [0.1]), instrumental activities of daily living limitations (2.3 [0.1] vs. 2.8 [0.1]), and of chronic conditions (3.2 [0.1] vs. 3.5 [0.1]). By 1-year (2012–2013), 6.3% of MA beneficiaries with dementia switched to TM and 4.3% of TM beneficiaries with dementia switched to MA. Between 2000 and 2014, dementia prevalence was lower in TM compared to MA. Evidence suggests that MA beneficiaries with dementia are younger and have fewer functional limitations than their dementia TM counterparts.

Key findings

Among TM enrollees, prevalence of dementia was lower by 4% points in 2014 (9.0%, 95%CI: 7.8%, 9.3%) compared to 2000 (13.0%, 95%CI: 12%, 14%).
The prevalence of dementia in MA was higher by 2% points in 2014 (10.0%, 95%CI: 8.5%, 11%) compared to 2000 (8.0%, 95% CI: 7.2%, 9.7%).
Prevalence of dementia in MA remained stable for Whites non-Hispanic, was 2% points higher for Blacks non-Hispanic, and 5% points higher for Hispanics in 2014 compared to 2000.
MA compared to TM beneficiaries with dementia in 2014 were younger (mean [SE] 81.6 [0.5] vs. 83.5 [0.4]), had fewer activity of daily living limitations (1.9 [0.1] vs. 2.4 [0.1]), instrumental activities of daily living limitations (2.3 [0.1] vs. 2.8 [0.1]), and of chronic conditions (3.2 [0.1] vs. 3.5 [0.1]).
By 1-year (2012–2013), 6.3% of MA beneficiaries with dementia switched to TM and 4.3% of TM beneficiaries with dementia switched to MA.

Why it matters

This study compared dementia prevalence trends between traditional Medicare and Medicare Advantage enrollees from 2000 to 2014. It is about how many people are diagnosed and in which insurance program, not about treating, curing, or preventing Alzheimer's disease.

Study details

Study designcross-sectional
Participants18,381
Effect size9.0%; 7.8%; 9.3%
Evidence strengthLow

How this study scored 47/100

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 (BMC Health Services Research)
Journal's citation record	2 / 4	BMC Health Services Research: journal h-index 218 (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	5 / 5	2026 — within 1 year(s) of the newest study here
Sample size	4 / 4	18,381 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	0 / 7	Cited 0 times (OpenAlex, 2026-10-10)
Citations per year	0 / 5	0.0 citations a year over 2 year(s) since 2026
Impact for its field and year	0 / 6	Cited 0.0× 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	0 / 4	Cited 0 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record	2 / 4	Last-listed author Eric Jutkowitz: h-index 31 (OpenAlex, whole career)
Institution's track record	2 / 3	University of Southern California: institution h-index 1,521 (OpenAlex)
Multi-centre collaboration	1 / 3	OpenAlex lists 3 institution(s) in 1 country
Indexed in PubMed	2 / 2	Indexed in PubMed (PMID 41792735)
Free to read	2 / 2	Free to read
Total	47 / 100	—

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

Read the original

Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).

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

Lopez-Mendez, M., Meyers, D. J., Shier, V., & Jutkowitz, E. (2026). National trends in the prevalence of dementia in Medicare Advantage and Traditional Medicare. BMC Health Services Research. https://doi.org/10.1186/s12913-025-13404-2

Vancouver

Lopez-Mendez M, Meyers DJ, Shier V, Jutkowitz E. National trends in the prevalence of dementia in Medicare Advantage and Traditional Medicare. BMC Health Services Research. 2026. doi:10.1186/s12913-025-13404-2. PMID: 41792735.

BibTeX

@article{lopezmendez2026-41792735,
  author  = {Lopez-Mendez, Mauricio and Meyers, David J. and Shier, Victoria and Jutkowitz, Eric},
  title   = {{National trends in the prevalence of dementia in Medicare Advantage and Traditional Medicare}},
  journal = {BMC Health Services Research},
  year    = {2026},
  doi     = {10.1186/s12913-025-13404-2},
  pmid    = {41792735},
  url     = {https://doi.org/10.1186/s12913-025-13404-2}
}

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