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Association Between Sensory Impairment and Dementia in Older Adults: Evidence from China
Luo Y, He P, Guo C, Chen G, Li N, Zheng X.. Journal of the American Geriatrics Society, 2018-01-10
Topic: Brain imaging, connectivity and assessment
Objectives To determine the association between sensory impairment and dementia in Chinese older adults. Design Cross-sectional. Setting Older adults in 31 provinces of China. Participants Individuals aged 65 and older (N = 250,752). Measurements Psychiatrists ascertained dementia based on the International Classification of Diseases, 10th Revision. Sensory impairment was measured as only hearing impairment, only vision impairment, and combined sensory impairment (combined hearing and vision impairment). Hearing impairment was defined as greater than 40 dB loss in the better ear according to the standard of the World Health Organization (WHO) Prevention of Deafness and Hearing Impairment (PDH) standard 97.3. Ophthalmologists assessed vision impairment according to the WHO best-corrected visual acuity (BCVA) criteria (low vision: 0.05≤BCVA ≤0.29; blindness: no light perception ≤ BCVA <0.05, visual field less than 10 degrees; the better-seeing eye). Results The prevalence of dementia was 0.41% (95% CI = 0.39-0.44%) without sensory impairment, 0.83% (95% CI = 0.70-0.99%) with only visual impairment, 0.61 (95% CI = 0.53-0.71%) with only hearing impairment, and 1.27% (95% CI = 1.00-1.61%) with combined sensory impairments. After adjusting for sociodemographic characteristics, vision impairment (odds ratio (OR) = 1.58, 95% CI = 1.28-1.96) and combined sensory impairments (OR = 1.64, 95% CI = 1.23-2.20) were associated with greater risk of severe to extremely severe dementia. Hearing impairment was not significantly associated with dementia. Conclusion Sensory impairments are associated with greater risk of dementia in Chinese older adults. Studies are needed to further explore the pathway of this association in Chinese elderly adults and to provide suggestions to improve health status for this population.
Key findings
- Results The prevalence of dementia was 0.41% (95% CI = 0.39-0.44%) without sensory impairment, 0.83% (95% CI = 0.70-0.99%) with only visual impairment, 0.61 (95% CI = 0.53-0.71%) with only hearing impairment, and 1.27% (95% CI = 1.00-1.61%) with combined sensory impairments.
- After adjusting for sociodemographic characteristics, vision impairment (odds ratio (OR) = 1.58, 95% CI = 1.28-1.96) and combined sensory impairments (OR = 1.64, 95% CI = 1.23-2.20) were associated with greater risk of severe to extremely severe dementia.
- Hearing impairment was not significantly associated with dementia.
- Conclusion Sensory impairments are associated with greater risk of dementia in Chinese older adults.
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Study details
- Study designcross-sectional
- Participants250,752
- Effect size0.41%; 0.44%; 0.83%
- Evidence strengthLow
How this study scored 60/100
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. We have no data on journal's citation record, times cited, citations per year, impact for its field and year, cited by studies here, still being cited, senior author's track record, institution's track record and multi-centre collaboration, so those were left out: it earned 35 of the 58 points we could judge it on, which is 60 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Journal of the American Geriatrics Society) |
| Journal's citation record | — / 4 | No journal record from OpenAlex — left out of this score |
| 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 | 2 / 5 | 2018 — within 10 year(s) of the newest study here |
| Sample size | 4 / 4 | 250,752 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 | — / 7 | No citation count (not found in OpenAlex) — left out of this score |
| Citations per year | — / 5 | No citation count or no year — left out of this score |
| Impact for its field and year | — / 6 | No field-weighted citation impact (OpenAlex has none yet) — left out of this score |
| Cited by studies here | — / 6 | Not yet checked against this library's citation graph — left out of this score |
| Still being cited | — / 4 | No yearly citation counts — left out of this score |
| Senior author's track record | — / 4 | Senior author's record not available — left out of this score |
| Institution's track record | — / 3 | No institution listed in OpenAlex — left out of this score |
| Multi-centre collaboration | — / 3 | Institutions not listed — left out of this score |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 29319875) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 35 / 58 | Scored on 11 of 20 parts. We have no data for the rest, so they are left out: 35 of the 58 points we could judge it on is 60 out of 100. |
| Total | 60 / 100 | — |
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APA 7th
Luo, Y., He, P., Guo, C., Chen, G., Li, N., & Zheng, X. (2018). Association Between Sensory Impairment and Dementia in Older Adults: Evidence from China. Journal of the American Geriatrics Society. https://doi.org/10.1111/jgs.15202
Vancouver
Luo Y, He P, Guo C, Chen G, Li N, Zheng X. Association Between Sensory Impairment and Dementia in Older Adults: Evidence from China. Journal of the American Geriatrics Society. 2018. doi:10.1111/jgs.15202. PMID: 29319875.
BibTeX
@article{luo2018-29319875,
author = {Luo, Y. and He, P. and Guo, C. and Chen, G. and Li, N. and Zheng, X.},
title = {{Association Between Sensory Impairment and Dementia in Older Adults: Evidence from China}},
journal = {Journal of the American Geriatrics Society},
year = {2018},
doi = {10.1111/jgs.15202},
pmid = {29319875},
url = {https://doi.org/10.1111/jgs.15202}
}