Evidence map›Paper›PMID 39733478›Full record

ArticleVaccine2025

Recombinant zoster vaccine and the risk of dementia.

Emily Tang, Isabel Ray, Benjamin F Arnold, Nisha R Acharya

Abstract read
In one paragraph

Article in Vaccine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Varicella zoster virus and the central nervous system.Nature reviews. Microbiology · 2026
    Review
  6. Reduced risk of dementia with recombinant zoster vaccine in US adults age 65 or older.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  7. Review
  8. Article
  9. Association between shingles vaccination and slower biological aging: evidence from a US population-based cohort study.The journals of gerontology. Series A, Biological sciences and medical sciences · 2026
    Article
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  11. Article
  12. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Emily TangF.I. Proctor Foundation, University of California, San Francisco, California, United States.
Isabel RayF.I. Proctor Foundation, University of California, San Francisco, California, United States.
Benjamin F ArnoldF.I. Proctor Foundation, University of California, San Francisco, California, United States; Department of Ophthalmology, University of California, San Francisco, California, United States.
Nisha R AcharyaF.I. Proctor Foundation, University of California, San Francisco, California, United States; Department of Ophthalmology, University of California, San Francisco, California, United States; Department of Epidemiology and Biostatistics, University of California, San Francisco, California, United States. Electronic address: Nisha.Acharya@ucsf.edu.

Funding

The Impact of the Herpes Zoster Vaccine on Herpes Zoster OphthalmicusR01EY028739 · NEI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI NISHA ACHARYA · 2018 to 2026
$4.5M
NEI NIH HHS R01 EY028739NEI NIH HHS R01 EY06190
6 · The paper itself

Abstract

backgroundHerpes zoster is a potential risk factor for dementia. The effectiveness of the recombinant zoster vaccine for preventing dementia is uncertain.

methodsThis retrospective cohort study used de-identified claims data from the Optum Labs Data Warehouse database from January 1, 2017, to December 31, 2022, to determine whether the recombinant zoster vaccine is associated with a reduced risk of dementia. Immunocompetent patients with ≥365 days of continuous enrollment were included, with the risk period starting upon age-eligibility for the recombinant zoster vaccination. Cox regression adjusted for time-fixed and time-updated measures every six months was implemented to estimate hazard ratios for dementia. Herpes zoster diagnosis and antiviral therapy were also assessed.

resultsThere were 4,502,678 individuals (median [IQR] age, 62 [54-71] years; 51 % female) included in this study: 206,297 (4.6 %) were partially vaccinated, and 460,413 (10.2 %) were fully vaccinated. The incidence rate of dementia was 99.1 cases per 10,000 person-years in the fully vaccinated group, 108.2 cases per 10,000 person-years in the partially vaccinated group, and 135.0 cases per 10,000 person-years in the unvaccinated group. After adjustment, vaccination was significantly associated with a decreased risk of dementia for two doses (hazard ratio (HR): 0.68; 95 % CI: 0.67-0.70; P < .001) and for one dose (HR 0.89; 95 % CI: 0.87-0.92; P < .001). Having a herpes zoster diagnosis before the first vaccination dose was associated with an increased hazard of dementia (HR 1.47; 95 % CI: 1.42-1.52; P < .001) compared to those with no diagnosis. Antivirals used to treat zoster infection were protective against dementia (HR 0.42; 95 % CI: 0.40-0.44; P < .001).

conclusionsThese findings suggest that the recombinant zoster vaccine is associated with a decreased risk of dementia and highlight an additional benefit of vaccination beyond preventing herpes zoster.

Indexed as

DementiaHerpes ZosterHerpes Zoster VaccineAgedFemaleHumansIncidenceMaleMiddle AgedProportional Hazards ModelsRetrospective StudiesRisk FactorsVaccinationVaccines, SyntheticHerpes Zoster VaccineVaccines, SyntheticAntiviral agentsDementiaHerpes zosterHerpes zoster vaccineRecombinant zoster vaccineVaccination

Identifiers

PMID39733478
PMCPMC11969937

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.