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Cochlear Implantation Is Associated With Reduced Incidence of Dementia in Severe Hearing Loss
Hee Won Seo, Soorack Ryu, Sang‐Yoon Han, Seung Hwan Lee, Jae Ho Chung. Ear and Hearing, 2025-04-09
Topic: Risk, prevention and care in population studies
The study involved 649 individuals in the CI group, 35,076 in the HA, 16,494 in the NR, and 1,280,788 in the NHL group. The groups that received auditory rehabilitation (HA and CI groups) had a significantly reduced risk of dementia compared with the NR group, with the CI group showing the most pronounced reduction. The CI group demonstrated a lower risk of dementia than the HA group and had a similar dementia risk to the NHL group. In individuals with severe to profound hearing loss, rates of dementia were lower in CI users than in HA users. Moreover, the risk of dementia in those undergoing CI surgery is comparable to that of individuals with normal hearing.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Seo, H. W., Ryu, S., Han, S., Lee, S. H., & Chung, J. H. (2025). Cochlear Implantation Is Associated With Reduced Incidence of Dementia in Severe Hearing Loss. Ear and Hearing. https://doi.org/10.1097/aud.0000000000001660
Vancouver
Seo HW, Ryu S, Han S, Lee SH, Chung JH. Cochlear Implantation Is Associated With Reduced Incidence of Dementia in Severe Hearing Loss. Ear and Hearing. 2025. doi:10.1097/aud.0000000000001660. PMID: 40200399.
BibTeX
@article{seo2025-40200399,
author = {Seo, Hee Won and Ryu, Soorack and Han, Sang‐Yoon and Lee, Seung Hwan and Chung, Jae Ho},
title = {{Cochlear Implantation Is Associated With Reduced Incidence of Dementia in Severe Hearing Loss}},
journal = {Ear and Hearing},
year = {2025},
doi = {10.1097/aud.0000000000001660},
pmid = {40200399},
url = {https://doi.org/10.1097/aud.0000000000001660}
}
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 study involved 649 individuals in the CI group, 35,076 in the HA, 16,494 in the NR, and 1,280,788 in the NHL group.
- The groups that received auditory rehabilitation (HA and CI groups) had a significantly reduced risk of dementia compared with the NR group, with the CI group showing the most pronounced reduction.
- The CI group demonstrated a lower risk of dementia than the HA group and had a similar dementia risk to the NHL group.
- In individuals with severe to profound hearing loss, rates of dementia were lower in CI users than in HA users.
- Moreover, the risk of dementia in those undergoing CI surgery is comparable to that of individuals with normal hearing.
Why it matters
This study found that cochlear implantation was associated with reduced incidence of dementia in individuals with severe to profound hearing loss, with the CI group showing a lower risk than the HA group and a similar risk to those with normal hearing. It suggests that auditory rehabilitation may play a role in reducing dementia risk.
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Study details
- Participants649
- Evidence strengthLow
How this study scored 39/100
Published in a peer-reviewed journal. Scored zero for study design, effect reported and randomised / blinded because the record does not state it. We have no data on senior author's track record, so that was left out: it earned 37 of the 96 points we could judge it on, which is 39 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Ear and Hearing) |
| Journal's citation record | 2 / 4 | Ear and Hearing: journal h-index 171 (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 | 4 / 5 | 2025 — within 3 year(s) of the newest study here |
| Sample size | 2 / 4 | 649 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 | 2 / 7 | Cited 5 times (OpenAlex, 2026-10-10) |
| Citations per year | 1 / 5 | 1.7 citations a year over 3 year(s) since 2025 |
| Impact for its field and year | 2 / 6 | Cited 2.9× 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 5 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | 0 / 3 | Hanyang University: institution h-index 548 (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 40200399) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 37 / 96 | Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 37 of the 96 points we could judge it on is 39 out of 100. |
| Total | 39 / 100 | — |
What each of these 20 components measures, and what this score is not →
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Also tagged “biobank”
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