Evidence map›Paper›PMID 33482736›Full record

ArticleBMC geriatrics2021

Effects of hearing impairment and hearing aid use on the incidence of cognitive impairment among community-dwelling older adults: evidence from the Taiwan Longitudinal Study on Aging (TLSA).

Chi-Jung Tai, Tzyy-Guey Tseng, Yu-Han Hsiao, Tsu-Ann Kuo, Ching-Ya Huang, Yi-Hsin Yang, Meng-Chih Lee

Abstract read
In one paragraph

Article in BMC geriatrics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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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

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

  1. Pooled it
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  8. Do hearing loss interventions prevent dementia?Zeitschrift fur Gerontologie und Geriatrie · 2023
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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

7 authors.

Chi-Jung TaiDepartment of Family Medicine, Pingtung Hospital, Ministry of Health and Welfare, Pingtung, Taiwan.
Tzyy-Guey TsengDepartment of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
Yu-Han HsiaoDepartment of Family Medicine, Taichung Hospital, Ministry of Health and Welfare, 199, sec. 1, San-Min Road, Taichung, Taiwan.
Tsu-Ann KuoDepartment of Medical Sociology and Social Work, Chung Shan Medical University, Taichung, Taiwan.
Ching-Ya HuangDepartment of Family Medicine, Pingtung Hospital, Ministry of Health and Welfare, Pingtung, Taiwan.
Yi-Hsin YangSchool of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.
Meng-Chih LeeDepartment of Family Medicine, Taichung Hospital, Ministry of Health and Welfare, 199, sec. 1, San-Min Road, Taichung, Taiwan. mengchihlee@gmail.com.ORCID 0000-0003-4650-395X

Funding

Ministry of Health and Welfare M06M2346, M09M7269
6 · The paper itself

Abstract

backgroundPrevious studies have reported associations between hearing impairment (HI) and cognitive impairment, but the evidence is not conclusive while considering concurrent geriatric syndromes. Especially, evidence from previous studies rarely came from Asian studies. This study aimed to evaluate the independent effects of HI and hearing aid use on the incidence of cognitive impairment while considering most geriatric confounders.

methodsThis population-based, propensity-score matched cohort study used cohort from Waves IV-VII (1999-2011) survey of the Taiwan Longitudinal Study on Aging (TLSA). Cognitive impairment was identified based on Short Portable Mental Status Questionnaire (SPMSQ) scores. The hazard ratio (HR) was calculated using the Cox proportional hazard regression adjusting for age, sex, comorbidities, socioeconomic status, Center for Epidemiologic Studies Depression (CES-D) scores, the instrumental activities of daily living scale, mobility condition and quality of life. In addition, social support and participation were also considered as confounders in the analysis. To assess the robustness of our findings, we conducted a sensitivity analysis designed to access unmeasured confounding factors by calculating E-values.

resultsAfter 1:1 propensity-score matching, we included 709 participants in both the HI and non-HI groups with a mean age of 73.4 years and 39.4% of participants were female. The mean follow-up was 8.9 ± 3.9 years. The HI group had a higher incidence of cognitive impairment than the non-HI group (74.5% vs. 69.1%, respectively), with an adjusted HR of 1.16 (95% confidence interval [CI], 1.03-1.32) based on a 12-year follow up. The E-value was 1.45 for the estimate, which provided evidence for this study's robustness. Although, a subgroup analysis showed that hearing aid use was associated with lower incidences of cognitive impairment (66.3% vs. 75.6%) when compared to non-users in the HI group, the adjusted HR of 0.82 (95% CI, 0.61-1.09) revealed no significant differences.

conclusionsHI was an independent risk factor of incident cognitive impairment on top of concurrent geriatric syndromes. Early HI detection may thus be effective for preventing cognitive decline. Further studies are needed to evaluate the effect of hearing aid use on the prevention of cognitive decline.

Indexed as

Cognitive DysfunctionHearing AidsHearing LossActivities of Daily LivingAgedAgingCohort StudiesFemaleHumansIncidenceIndependent LivingLongitudinal StudiesQuality of LifeTaiwanCognitive impairmentFrailtyGeriatric syndromesHearing aidHearing impairment

Identifiers

PMID33482736
PMCPMC7824934

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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.