scholarly journals Association of the use of hearing aids with the conversion from mild cognitive impairment to dementia and progression of dementia: a longitudinal retrospective study

Author(s):  
Magda Bucholc ◽  
Paula L. McClean ◽  
Sarah Bauermeister ◽  
Stephen Todd ◽  
Xuemei Ding ◽  
...  

AbstractINTRODUCTIONHearing aid usage has been linked to improvements in cognition, communication, and socialization, but the extent to which it can affect the incidence and progression of dementia is unknown. Such research is vital given the high prevalence of dementia and hearing impairment in older adults, and the fact that both conditions often coexist. In this study, we examined for the first time the effect of the use of hearing aids on the conversion from mild cognitive impairment (MCI) to dementia and progression of dementia.METHODSWe used a large referral-based cohort of 2114 hearing-impaired patients obtained from the National Alzheimer’s Coordinating Center. Survival analyses using multivariable Cox proportional hazards regression model and weighted Cox regression model with censored data were performed to assess the effect of hearing aid use on the risk of conversion from MCI to dementia and risk of death in hearing-impaired participants. Disease progression was assessed with CDR® Dementia Staging Instrument Sum of Boxes (CDRSB) scores. Three types of sensitivity analyses were performed to validate the robustness of the results.RESULTSMCI participants that used hearing aids were at significantly lower risk of developing all-cause dementia compared to those not using hearing aids (hazard ratio [HR] 0.73, 95%CI, 0.61-0.89; false discovery rate [FDR] P=0.004). The mean annual rate of change (standard deviation) in CDRSB scores for hearing aid users with MCI was 1.3 (1.45) points and significantly lower than for individuals not wearing hearing aids with a 1.7 (1.95) point increase in CDRSB per year (P=0.02). No association between hearing aid use and risk of death was observed. Our findings were robust subject to sensitivity analyses.DISCUSSIONAmong hearing-impaired adults, hearing aid use was independently associated with reduced dementia risk. The causality between hearing aid use and incident dementia should be further tested.HighlightsHigh prevalence of dementia and hearing impairment in older adultsHearing aid (HA) use associated with a lower risk of incident dementiaSlower cognitive decline in users than non-users of HA with mild cognitive impairmentThe relationship between hearing impairment and dementia should be further tested

2021 ◽  
Author(s):  
Magda Bucholc ◽  
Sarah Bauermeister ◽  
Daman Kaur ◽  
Paula McClean ◽  
Stephen Todd

Abstract The increasing prevalence of dementia in older adults warrants attention to the identification of practices that can delay or reduce likelihood of progression to early forms of cognitive impairment, in particular, to mild cognitive impairment (MCI) which is often considered a transitional stage between healthy aging and dementia. In this study, we investigated the effect of hearing impairment and hearing aid usage on cognitive decline and progression to MCI in cognitively healthy individuals. We used data from a large referral-based cohort obtained from the National Alzheimer’s Coordinating Center. The baseline sample included 5721 cognitively normal subjects aged ≥ 40. We found that hearing impairment was associated with increased risk of progression to MCI (hazard ratio [HR] = 1.40, 95%CI, 1.16-1.68, false discovery rate [FDR] P < 0.001) and an accelerated rate of cognitive decline (P < 0.001). Among hearing-impaired participants, hearing aid users were less likely to develop MCI (HR, 0.33; 95% CI, 0.23-0.47; FDR P < 0.001) and experienced slower cognitive decline (P = 0.004) when compared to those not using hearing aids. We found no statistically significant differences in risk of conversion to MCI between individuals with normal hearing and hearing-impaired adults using hearing aids (HR, 1.23; 95% CI, 0.99-1.50; FDR P = 0.08). Our findings highlight the need for a randomized clinical trial that will allow us to investigate whether there is a causal relationship between hearing loss, hearing aid use, and conversion to MCI. Such knowledge could provide new and novel insights into prevention of cognitive impairment and dementia.


2020 ◽  
Vol 8 ◽  
pp. 205031212090457
Author(s):  
Sarah Gregory ◽  
Jo Billings ◽  
Danielle Wilson ◽  
Gill Livingston ◽  
Anne GM Schilder ◽  
...  

Objectives: Hearing aid usage supports communication and independence; however, many do not use their hearing aids. This study explored the experiences of hearing aid use in adults with mild cognitive impairment or Alzheimer’s disease. Methods: Participants completed semi-structured interviews which were analysed using thematic analysis. Ten people (six males, age range 75–86 years old) with mild cognitive impairment or Alzheimer’s disease who had been fitted with hearing aids were recruited to the study. Results: We identified four major themes: (1) memory and other cognitive barriers to using hearing aids, (2) practical aspects of hearing aids, (3) benefits of hearing aids, and (4) ambivalence towards hearing aids. Conclusions: Participants perceived a significant impact of cognitive impairment on the experience of using hearing aids. This population may benefit from targeted strategies to support use of hearing aids. The findings from this study can inform future research to optimise use of hearing aids in this population.


2021 ◽  
Author(s):  
Graham Naylor ◽  
Lauren Dillard ◽  
Martin Orrell ◽  
Blossom Stephan ◽  
Oliver Zobay ◽  
...  

Objectives: Hearing-aid use may reduce risk of dementia, but cognitive impairment makes hearing-aid use more challenging. These two causal pathways may both manifest as an association between reduced hearing-aid use and incident dementia. This study examined the effects of each pathway separately, through a unique combination of longitudinal data regarding hearing, general health, dementia diagnoses and continuity of HA use. Methods: Longitudinal health records data from 380,794 Veterans who obtained hearing aids from the US Veterans Affairs healthcare system were analysed. Analysis 1 (n=72,180) used logistic regression to model the likelihood of a dementia diagnosis at 3 year 6 months (3y6m) to 5 years post hearing-aid fitting for patients previously free of dementia and mild cognitive impairment (MCI). Analysis 2 (n=350,918) modelled the likelihood of being a persistent hearing aid user at 3y2m after fitting, contrasting subgroups with differing levels of cognitive function at the time of fitting. Models controlled for relevant predictors available in the dataset. Results: In analysis 1, the adjusted OR for incident dementia was 0.73 (ci 0.66-0.81) for persistent (vs. non persistent) hearing-aid users. In analysis 2, the adjusted OR for hearing-aid use persistence was 0.46 (ci 0.43-0.48) in those with pre-existing dementia (vs. those remaining free of MCI and dementia). Conclusion: The results indicate substantial effects from both causal pathways. Research studying protective effects of hearing-aid use against dementia needs to account for this. Clinically, hearing devices and hearing care processes must be accessible and usable for all, regardless of their level of cognitive function.


1998 ◽  
Vol 87 (2) ◽  
pp. 703-706 ◽  
Author(s):  
Gerhard Andersson

In this report data on hearing aid use were combined from three randomized controlled studies on behavioural hearing tactics. Daily average hearing aid use at pretreatment and posttreatment were analysed for 63 older hearing-impaired persons who had either received treatment or acted as controls. Analysis showed a significant, albeit weak, decrease in daily hearing aid use for those subjects who had received the treatment. The utility of amount of hearing aid use as an indicator of rehabilitation success is discussed.


2017 ◽  
Vol 13 (7S_Part_22) ◽  
pp. P1063-P1063
Author(s):  
Sarah Gregory ◽  
Jo Billings ◽  
Danielle Wilson ◽  
Gill Livingston ◽  
Anne Schilder ◽  
...  

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Chi-Jung Tai ◽  
Tzyy-Guey Tseng ◽  
Yu-Han Hsiao ◽  
Tsu-Ann Kuo ◽  
Ching-Ya Huang ◽  
...  

Abstract Background Previous 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. Methods This 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. Results After 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. Conclusions HI 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.


2020 ◽  
Author(s):  
Chi-Jung Tai ◽  
Tzyy-Guey Tseng ◽  
Yu-Han Hsiao ◽  
Tsu-Ann Kuo ◽  
Ching-Ya Huang ◽  
...  

Abstract Background: Previous 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.Methods: This 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.Results: After 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.Conclusions: HI 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.


2020 ◽  
Author(s):  
Chi-Jung Tai ◽  
Tzyy-Guey Tseng ◽  
Yu-Han Hsiao ◽  
Tsu-Ann Kuo ◽  
Ching-Ya Huang ◽  
...  

Abstract Background: Previous 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.Methods: This 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.Results: After 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.Conclusions: HI 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.


2006 ◽  
Vol 17 (09) ◽  
pp. 659-666 ◽  
Author(s):  
Melinda C. Freyaldenhoven ◽  
Patrick N. Plyler ◽  
James W. Thelin ◽  
Samuel B. Burchfield

The present study investigated the effects of monaural and binaural amplification on speech understanding in noise and acceptance of noise for 39 listeners with hearing impairment. Results demonstrated that speech understanding in noise improved with binaural amplification; however, acceptance of noise was not dependent on monaural or binaural amplification for most listeners. These results suggest that although two hearing aids maximize speech understanding ability in noise, most individuals' acceptance of noise, which is directly related to hearing aid use, may not be affected by the use of binaural amplification. It should be noted that monaural amplification resulted in greater acceptance of noise for some listeners, indicating that binaural amplification may negatively affect some individuals' willingness to wear hearing aids. It should also be noted that interaural differences in acceptance of noise might exist for some listeners; therefore, if only one hearing aid is fitted, monaural ANLs should be measured.


2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 86-86
Author(s):  
Marilyn Reed

Abstract While hearing loss is highly prevalent among patients with dementia, it frequently goes unidentified and unmanaged. It has been a commonly-held belief that older adults with dementia are unable to benefit from hearing rehabilitation, but recent evidence shows that many individuals with dementia can successfully use amplification, helping to improve communication, social interaction and quality of life for these individuals and their caregivers. This presentation will describe how modifications to practice led to successful outcomes for the majority of patients of a geriatric audiology clinic with co-morbid hearing loss and cognitive impairment. In a study of hearing aid use in 67 patients with these comorbidities, over 90% used hearing aids successfully with measurable benefit for both patients and caregivers. Furthermore, we will discuss approaches to improving communication for LTC residents with dementia and hearing loss through the support of audiologists during remote visits with physicians and families during the pandemic.


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