Clinical Practice Guideline: Age-Related Hearing Loss Executive Summary.

OBJECTIVE: Age-related hearing loss (ARHL) is a prevalent but often underdiagnosed and undertreated condition among individuals aged 50 and above. It is associated with various sociodemographic factors and health risks including dementia, depression, cardiovascular disease, and falls. While the causes of ARHL and its downstream effects are well defined, there is a lack of priority placed by clinicians as well as guidance regarding the identification, education, and management of this condition. PURPOSE: The purpose of this clinical practice guideline is to identify quality improvement opportunities and provide clinicians trustworthy, evidence-based recommendations regarding the identification and management of ARHL. These opportunities are communicated through clear actionable statements with an explanation of the support in the literature, the evaluation of the quality of the evidence, and recommendations on implementation. The target patients for the guideline are any individuals aged 50 years and older. The target audience is all clinicians in all care settings. This guideline is intended to focus on evidence-based quality improvement opportunities judged most important by the Guideline Development Group (GDG). It is not intended to be a comprehensive, general guide regarding the management of ARHL. The statements in this guideline are not intended to limit or restrict care provided by clinicians based on their experience and assessment of individual patients. ACTION STATEMENTS: The GDG made strong recommendations for the following key action statements (KASs): (KAS 4) If screening suggests hearing loss, clinicians should obtain or refer to a clinician who can obtain an audiogram. (KAS 8) Clinicians should offer, or refer to a clinician who can offer, appropriately fit amplification to patients with ARHL. (KAS 9) Clinicians should refer patients for an evaluation of cochlear implantation candidacy when patients have appropriately fit amplification and persistent hearing difficulty with poor speech understanding. The GDG made recommendations for the following KASs: (KAS 1) Clinicians should screen patients aged 50 years and older for hearing loss at the time of a health care encounter. (KAS 2) If screening suggests hearing loss, clinicians should examine the ear canal and tympanic membrane with otoscopy or refer to a clinician who can examine the ears for cerumen impaction, infection, or other abnormalities. (KAS 3) If screening suggests hearing loss, clinicians should identify sociodemographic factors and patient preferences that influence access to and utilization of hearing health care. (KAS 5) Clinicians should evaluate and treat or refer to a clinician who can evaluate and treat patients with significant asymmetric hearing loss, conductive or mixed hearing loss, or poor word recognition on diagnostic testing. (KAS 6) Clinicians should educate and counsel patients with hearing loss and their family/care partner(s) about the impact of hearing loss on their communication, safety, function, cognition, and quality of life. (KAS 7) Clinicians should counsel patients with hearing loss on communication strategies and assistive listening devices. (KAS 10) For patients with hearing loss, clinicians should assess if communication goals have been met and if there has been improvement in hearing-related quality of life at a subsequent health care encounter or within 1 year. The GDG offered the following KAS as an option: (KAS 11) Clinicians should assess hearing at least every 3 years in patients with known hearing loss or with reported concern for changes in hearing.

Clinical Practice Guideline: Age-Related Hearing Loss.

OBJECTIVE: Age-related hearing loss (ARHL) is a prevalent but often underdiagnosed and undertreated condition among individuals aged 50 and above. It is associated with various sociodemographic factors and health risks including dementia, depression, cardiovascular disease, and falls. While the causes of ARHL and its downstream effects are well defined, there is a lack of priority placed by clinicians as well as guidance regarding the identification, education, and management of this condition. PURPOSE: The purpose of this clinical practice guideline is to identify quality improvement opportunities and provide clinicians trustworthy, evidence-based recommendations regarding the identification and management of ARHL. These opportunities are communicated through clear actionable statements with explanation of the support in the literature, evaluation of the quality of the evidence, and recommendations on implementation. The target patients for the guideline are any individuals aged 50 years and older. The target audience is all clinicians in all care settings. This guideline is intended to focus on evidence-based quality improvement opportunities judged most important by the guideline development group (GDG). It is not intended to be a comprehensive, general guide regarding the management of ARHL. The statements in this guideline are not intended to limit or restrict care provided by clinicians based on their experience and assessment of individual patients. ACTION STATEMENTS: The GDG made strong recommendations for the following key action statements (KASs): (KAS 4) If screening suggests hearing loss, clinicians should obtain or refer to a clinician who can obtain an audiogram. (KAS 8) Clinicians should offer, or refer to a clinician who can offer, appropriately fit amplification to patients with ARHL. (KAS 9) Clinicians should refer patients for an evaluation of cochlear implantation candidacy when patients have appropriately fit amplification and persistent hearing difficulty with poor speech understanding. The GDG made recommendations for the following KASs: (KAS 1) Clinicians should screen patients aged 50 years and older for hearing loss at the time of a health care encounter. (KAS 2) If screening suggests hearing loss, clinicians should examine the ear canal and tympanic membrane with otoscopy or refer to a clinician who can examine the ears for cerumen impaction, infection, or other abnormalities. (KAS 3) If screening suggests hearing loss, clinicians should identify sociodemographic factors and patient preferences that influence access to and utilization of hearing health care. (KAS 5) Clinicians should evaluate and treat or refer to a clinician who can evaluate and treat patients with significant asymmetric hearing loss, conductive or mixed hearing loss, or poor word recognition on diagnostic testing. (KAS 6) Clinicians should educate and counsel patients with hearing loss and their family/care partner(s) about the impact of hearing loss on their communication, safety, function, cognition, and quality of life (QOL). (KAS 7) Clinicians should counsel patients with hearing loss on communication strategies and assistive listening devices. (KAS 10) For patients with hearing loss, clinicians should assess if communication goals have been met and if there has been improvement in hearing-related QOL at a subsequent health care encounter or within 1 year. The GDG offered the following KAS as an option: (KAS 11) Clinicians should assess hearing at least every 3 years in patients with known hearing loss or with reported concern for changes in hearing.

An Emerging Approach of Age-Related Hearing Loss Research: Application of Integrated Multi-Omics Analysis.

As one of the most common otologic diseases in the elderly, age-related hearing loss (ARHL) usually characterized by hearing loss and cognitive disorders, which have a significant impact on the elderly's physical and mental health and quality of life. However, as a typical disease of aging, it is unclear why aging causes widespread hearing impairment in the elderly. As molecular biological experiments have been conducted for research recently, ARHL is gradually established at various levels with the application and development of integrated multi-omics analysis in the studies of ARHL. Here, the recent progress in the application of multi-omics analysis in the molecular mechanisms of ARHL development and therapeutic regimens, including the combined analysis of different omics, such as transcriptome, proteome, and metabolome, to screen for risk sites, risk genes, and differences in lipid metabolism, etc., is outlined and the integrated histological data further promote the profound understanding of the disease process as well as physiological mechanisms of ARHL. The advantages and disadvantages of multi-omics analysis in disease research are also discussed and the authors speculate on the future prospects and applications of this part-to-whole approach, which may provide more comprehensive guidance for ARHL and aging disease prevention and treatment.

Genetic analysis of potential biomarkers and therapeutic targets in age-related hearing loss.

Age-related hearing loss (ARHL) or presbycusis is the phenomenon of hearing loss due to the aging of auditory organs with age. It seriously affects the cognitive function and quality of life of the elderly. This study is based on comprehensive bioinformatic and machine learning methods to identify the critical genes of ARHL and explore its therapy targets and pathological mechanisms. The ARHL and normal samples were from GSE49543 datasets of the Gene Expression Omnibus (GEO) database. Weighted gene co-expression network analysis (WGCNA) was applied to obtain significant modules. The Limma R-package was used to identify differentially expressed genes (DEGs). The 15 common genes of the practical module and DEGs were screened. Functional enrichment analysis suggested that these genes were mainly associated with inflammation, immune response, and infection. Cytoscape software created the protein-protein interaction (PPI) layouts and cytoHubba, support vector machine-recursive feature elimination (SVM-RFE), and random forests (RF) algorithms screened hub genes. After validating the hub gene expressions in GSE6045 and GSE154833 datasets, Clec4n, Mpeg1, and Fcgr3 are highly expressed in ARHL and have higher diagnostic efficacy for ARHL, so they were identified as hub genes. In conclusion, Clec4n, Mpeg1, and Fcgr3 play essential roles in developing ARHL, and they might become vital targets in ARHL diagnosis and anti-inflammatory therapy.

[Early management of presbycusis: recommendations from the French Society of Otorhinolaryngology and Head and Neck Surgery, the French Society of Audiology, and the French Society of Geriatrics and Gerontology]. / Recommandations de la Société française d'otorhinolaryngologie et de chirurgie de la face et du cou, la Société française d'audiologie et la Société française de gériatrie et gérontologie pour la prise en charge précoce de la presbyacousie.

INTRODUCTION: Presbycusis is the physiological decrease in hearing due to advancing age and begins well before the sixth decade. These recommendations recall the principles of early diagnosis of presbycusis and the means of optimal rehabilitation as soon as the first symptoms appear. MATERIAL AND METHODS: The recommendations are based on a systematic analysis of the literature carried out by a multidisciplinary group of doctors and audioprosthetists from all over France. They are graded A, B, C or expert opinion according to decreasing level of scientific evidence. RESULTS: The diagnosis of presbycusis is more difficult at the beginning of its evolution but a certain number of tools are available for its early diagnosis and its management in face-to-face or even distance learning. CONCLUSION: In case of a clinical profile suggestive of presbycusis in a young subject, especially if there are several family cases, it is recommended to propose a genetic investigation. It is recommended to perform free-field speech audiometry in noise to measure intelligibility in an environment as close as possible to reality. Questionnaires can be used in addition to audiometry to best assess the patient's disability. It is recommended that hearing rehabilitation with a hearing aid or cochlear implant may slow or prevent cognitive decline. Combined auditory and cognitive rehabilitation should be offered regardless of the time elapsed since the fitting. It is recommended to integrate programs accessible via smartphones, tablets or the Internet, integrating different training domains in addition to face-to-face sessions.

Presbycusis and balance disorders in the elderly. Bibliographical review of ethiopathogenic aspects, consequences on quality of life and positive effects of its treatment.

At this time, we still do not have adequate knowledge and awareness of the consequences of hearing loss in the elderly on quality of life. Similarly, there is also insufficient information on the relationship of presbycusis and balance disorders with other comorbidities. Such knowledge can contribute to improve both prevention and treatment of these pathologies, to reduce their impact on other areas such as cognition or autonomy, as well as to have more accurate information on the economic impact they generate in society and in the health system. Therefore, with this review article we aim to update the information on the type of hearing loss and balance disorders in people over 55 years of age, and their associated factors; to analyze the impact on the quality of life of these people and the one which can be generated at a personal and population level (both sociological and economic) if an early intervention in these patients is pursued.

Post-translational modifications and age-related hearing loss.

Post-translational modifications (PTMs) affect nearly all systems of the human body due to their role in protein synthesis and functionality. These reversible and irreversible modifications control the structure, localization, activity, and properties of proteins. For this reason, PTMs are essential in regulating cellular processes and maintaining homeostasis. Diseases such as Alzheimer's, cardiovascular disease, diabetes, cancer, and many others have been linked to dysfunctions of PTMs. Recent research has also shown that irregularities in PTMs can be linked to hearing loss, including age-related hearing loss (ARHL) - the number one communication disorder and one of the top neurodegenerative diseases in our aging population. So far, there has been no FDA approved treatment for ARHL; however, translational studies investigating PTMs involvement in ARHL show promising results. In this review, we summarize key findings for PTMs within the auditory system, the involvement of PTMs with aging and ARHL, and lastly discuss potential treatment options focusing on utilizing PTMs as biomarkers and therapeutic pathway components.

Coprevalence of Presbycusis and Its Effect on Outcome of Voice Therapy in Patients With Presbyphonia.

OBJECTIVE: To identify the coprevalence of presbycusis and presbycusis and analyze the effect of presbycusis on compliance and result of voice therapy in presbycusis patients. METHODS: This cross-sectional, prospective cohort study initially screened patients aged ≥65 years who visited our hospital from February 2019 to January 2020. Unaided pure tone audiometry was performed in these subjects to determine the presence of presbycusis. Perceptual voice assessment by an examiner was conducted for screening of presbycusis, and its diagnosis was confirmed through the voice handicap index-10 (VHI-10) questionnaire and a laryngoscopic exam. Patients with presbycusis underwent voice therapy and were assessed for their compliance and outcomes of the treatment according to the coexistence of presbycusis. RESULTS: Among the 221 patients, presbycusis and presbycusis were diagnosed in 125 (56.6%) and 110 (49.8%) patients, respectively. The copresence of these two disorders were identified in 87 (39.4%) patients, and there was a significant correlation between presbycusis and presbycusis. The effects of voice therapy were examined in the consecutive 40 patients who were diagnosed with presbycusis. There were 21 patients without presbycusis and 19 patients with presbycusis. The average pretreatment voice handicap index-10 score was significantly higher in presbycusis patients; there was no significant difference in the incidence of dropout from voice therapy between the groups. The patients without presbycusis showed a significant improvement in the functional communication measurement (FCM) level and maximum phonation time (MPT) compared with those of patients with presbycusis after voice therapy. CONCLUSIONS: Presbyphonia and presbycusis coexisted in many elderly people. The improvement in the FCM level and MPT after voice therapy was relatively low if patients with presbycusis accompanied by presbycusis. The copresence of presbycusis did not significantly affect compliance with voice therapy in the patients.

A BK channel-targeted peptide induces age-dependent improvement in behavioral and neural sound representation.

Recent evidence suggests that modulation of the large-conductance, calcium-activated potassium (BK) channel regulates auditory processing in the brain. Because ion channel expression often changes during aging, this could be a factor in age-related hearing loss. The current study explored how the novel BK channel modulator LS3 shapes central auditory processing in young and old adult mice. In vivo extracellular recordings in the auditory midbrain demonstrated that LS3 differentially modulates neural processing along the tonotopic axis. Though sound-evoked activity was reduced in the mid and ventral tonotopic regions, LS3 enhanced excitatory drive and sound-evoked responses for some neurons in the dorsal, low-frequency region. Behavioral assessment using acoustic reflex modification audiometry indicated improved tone salience following systemic LS3 administration. Moderation of these responses with aging correlated with an age-related decline in BK channel expression. These findings suggest that targeting the BK channel enhances responsivity to tonal sounds, providing the potential to improve hearing acuity and treat hearing loss.

Quality Improvement in Otolaryngology-Head and Neck Surgery: Age-Related Hearing Loss Measures.

BACKGROUND AND SIGNIFICANCE: There is a high and growing prevalence of age-related hearing loss (ARHL), defined as presbycusis or bilateral, symmetric sensorineural hearing loss in older adults. Due to the increasing prevalence of ARHL, the potential delays in its diagnosis and treatment, and the significant disability associated with ARHL, the American Academy of Otolaryngology-Head and Neck Surgery Foundation (AAO-HNSF) convened a Measures Development Group (MDG) to develop quality measures (QMs) of clinical practice that could be incorporated into the AAO-HNSF's data registry Reg-ent. Although the AAO-HNSF has been engaged in robust clinical practice guideline development since 2006, the development of quality and performance measures is more recent. METHODS: We report the process, experience, and outcomes in developing a de novo QM set for ARHL in the absence of a preexisting clinical practice guideline on this topic. Steps include the MDG review of evidentiary literature on ARHL, followed by stakeholder discussions to develop measure specifications. Key considerations included discussion on the relative importance, usability, and feasibility of each measure within the Reg-ent or similar databases. RESULTS: The MDG created 4 QMs for the diagnosis and treatment of AHRL. These measures represent the AAO-HNSF's quality initiatives to develop evidence-based QMs and improve patient care and outcomes, and they are intended to assist providers in enhancing quality of care. CONCLUSION: Development of the ARHL measures is intended for clinicians to evaluate the patient perception, structure, process, and outcomes of care. This process represents a new stage in the AAO-HNSF's measure development efforts to facilitate future efforts in evidence-based QM.

Efeito do treinamento musical em idosos candidatos ao uso de próteses auditivas / Effect of musical training in older adults candidates to the use of hearing aids / Efecto de la formación musical en ancianos candidatos al uso de audífonos

Introdução: Associação entre adaptação de próteses auditivas e treinamento auditivo pode melhorar a comunicação do indivíduo e reduzir os déficits funcionais. Objetivo: verificar o benefício na qualidade de vida, sintomas depressivos, aspectos cognitivos, resolução temporal e limitação em atividades de vida em idosos com perda auditiva, após adaptação de próteses auditivas associadas ou não ao treinamento auditivo musical. Métodos: Grupo Experimental - GE: cinco idosos (64 a 79 anos) e Grupo Controle - GC: cinco idosos (62 a 77 anos), todos com perda auditiva neurossensorial simétrica de grau moderado. Foram submetidos à anamnese, miniteste de triagem cognitiva CASI-S, avaliação audiológica incluindo Índice Porcentual de Reconhecimento de Fala (IPRF), Client-Oriented Scale of Improvement (COSI), resolução temporal (teste GIN), triagem para sintomas depressivos (EDG-15), questionários de qualidade de vida (SF-36) e de autoavaliação para próteses auditivas (QI-AASI). Todos receberam próteses auditivas, e apenas o GE, o treinamento auditivo musical. Avaliação realizada em três momentos: antes da adaptação das próteses auditivas; 11 semanas após a adaptação das mesmas, sendo o GE submetido ao treinamento musical por sete semanas; e quatro meses depois. Resultados: Não houve diferença entre grupos segundo idade, escolaridade e triagem cognitiva. Todos apresentaram melhores limiares no teste de resolução temporal após a intervenção. Os escores dos testes de qualidade de vida e sintomas depressivos não foram significantemente diferentes entre grupos e avaliações. Conclusão: O uso efetivo de próteses auditivas, associado ou não ao treinamento musical, melhorou a resolução temporal. Não houve melhora significativa na qualidade de vida, sintomas depressivos, cognição e COSI.

Introduction: Association between hearing aid fitting and auditory training can improve an individual's communication and reduce functional deficits. Objective: to verify benefit in quality of life, depressive symptoms, cognitive aspects, temporal resolution, and limitation in daily activities for elderly people with hearing loss, after adaptation of hearing aids associated or not with musical auditory training. Methods: Experimental Group - EG: five elderly (64 to 79 years old) and Control Group - CG: five elderly (62 to 77 years old), all with moderate symmetric sensorineural hearing loss. They underwent anamnesis, cognitive screening CASI-S, audiological evaluation including Percentage Index of Speech Recognition (PISR), Client-Oriented Scale of Improvement (COSI), temporal resolution (GIN), screening for depressive symptoms (GDS-15), quality of life questionnaires (SF-36) and IOI-HA self-assessment. All received hearing aids but only the EG received the auditory musical training. Evaluation performed in three moments: before the fitting of the hearing aids; 11 weeks after their adaptation, with the EG undergoing musical training for seven weeks; and four months later. Results: There was no difference between groups according to age, education, and cognitive screening. All had better thresholds in the GIN after the intervention. The GDS-15 and SF-36 scores were not significantly different between groups and assessments. Conclusion: Using hearing aids associated or not with musical training improved temporal resolution. There was no improvement in the quality of life, depressive symptoms, cognition, and COSI scale.

Introducción: Asociación entre adaptación de prótesis auditivas y entrenamiento auditivo puede mejorar la comunicación del individuo y reducir los déficits funcionales. Objetivo: verificar el beneficio en la calidad de vida, síntomas depresivos, aspectos cognitivos, resolución temporal y limitación de la vida de las personas mayores con hipoacusia, tras adaptación de audífonos asociada o no al entrenamiento auditivo musical. Métodos: Grupo Experimental ­ GE: cinco ancianos (64 a 79 años) y Grupo Control - GC: cinco ancianos (62 a 77 años) todos con hipoacusia neurosensorial simétrica moderada. Fueron sometidos a la anamnesis, miniprueba de triaje cognitiva CASI-S, evaluación audiológica incluyendo Índice Porcentual de Reconocimiento de Habla (IPRH), Client-Oriented Scale of Improvement (COSI), resolución temporal (prueba GIN), classificación para síntomas depresivos (EDG-15), cuestionarios de calidad de vida (SF-36) y autoevaluación de audífonos (QI-AASI). Todos recibieron los audífonos, sólo el GE, el entrenamiento auditivo musical. Evaluación realizada en tres momentos: antes de la adaptación de los audífonos; 11 semanas después de la adaptación de las mismas siendo el GE sometido al entrenamiento musical por siete semanas; y cuatro meses después. Resultados: No hubo diferencia entre grupos según edad, escolaridad y triaje cognitivo. Todos presentaron mejores umbrales en la prueba de resolución temporal después de la intervención. Los resultados de las pruebas de calidad de vida y los síntomas depresivos no fueron significativamente diferentes entre grupos y evaluaciones. Conclusión: Usar audífonos asociados o no con entrenamiento musical mejoró la resolución temporal. No hubo mejora significativa en la calidad de vida, síntomas depresivos, cognición y COSI.

A Novel Therapy for Presbycusis.

Hearing amplification is the mainstay of treatment for presbycusis, but adherence with this therapy remains abysmally low, necessitating the exploration of other treatment modalities. Mineralocorticoids represent one such novel treatment modality. Although research on mineralocorticoids to prevent and retard presbycusis in humans shows promise and the potential to radically change the way clinicians approach age-related hearing loss, it remains in its infancy. Future studies that further evaluate the safety and efficacy of mineralocorticoids for presbycusis are still required for this potentially paradigm shifting therapy to gain widespread acceptance.

The Role of the General Practitioner in Managing Age-Related Hearing Loss: A Scoping Review.

Purpose The purpose of this review was to examine the research activity relating to the role of the general practitioner (GP) in managing age-related hearing loss in older adults. Method A literature search of peer-reviewed journal articles published in English was conducted in online bibliographic databases using multiple variations of the keywords "general practitioner" and "hearing." Results The search strategy identified 3,255 articles. The abstracts of all articles were screened with 124 full-text records subsequently assessed for eligibility. Forty-nine articles met the inclusion criteria and were included in this review. Conclusions For people with hearing loss, the GP can play an instrumental role in guiding appropriate and timely choices for addressing hearing concerns. There are a range of quick, easy, and sensitive methods available to GPs to assist the objective evaluation of hearing. The evidence suggests that implementing hearing screening programs targeting older adults will increase rates of hearing loss detection and subsequently increase the number of patients receiving hearing loss intervention. Education and training appear key to improving GPs' screening, management, and referral of patients with hearing loss in the primary health care setting.

[Audiometric test battery for presbycusis]. / Audiometrische Testbatterie bei Presbyakusis.

Old people often complain that they can no longer sufficiently participate in communication with spoken language. The reasons for this lie in pathophysiological processes as well as in acoustic parameters and the decline in cognitive performance that frequently occurs in old age, which together severely limit the individual benefits of speech. Age-related hearing loss consists of a variety of pathophysiological and cognitive factors. Several audiometric procedures are necessary for profound diagnostics, planning and implementation of interventions for hearing improvement as well as interventions for the individual improvement of the benefits of hearing in everyday life. In a basic test battery, the subjective and objective procedures for the primary detailed quantification and differentiation of the pathophysiological effects of presbycusis are listed, which serve as a basis for interventions to improve hearing. If necessary, audiometric procedures for more in-depth pathophysiological analyses can be used as part of the extended test battery. They are mainly used to differentiate between peripheral and retrocochlear factors of age-related hearing loss. The aim of the methods in the test battery for the evaluation of communication impairment in everyday life is the quantitative and qualitative evaluation of the ability to participate in communication with spoken language under realistic acoustic everyday conditions. From the results, acoustic and cognitive factors can be identified which determine the limited benefits of speech. Thus, strategies and procedures for the improvement of speech communication can be derived which, despite the pathophysiological conditions, can lead to an improved participation in speech communication in the everyday life of the patients.

[Presbyacusis]. / Presbiakuzis - aktual'naia problema stareiushchego naseleniia.

In the world, the spread of hearing loss due to age is an important socio-medical problem. Age-related hearing loss is the result of the biological process of aging of the tissue elements of the auditory analyzer. Changes in hearing develops by a complex of factors associated with both genetic, environmental and social aspects. Presbycusis is one of the causes of human cognitive disorders. Recent studies on hearing impairment prove a correlation with cognitive processes that increase the risk of dementia in the elderly. Timely rehabilitation of hearing with the use of hearing aids allows you to delay the processes of inhibition of cognitive function, and allows older people to prolong active longevity. Patients require consistent auditory and cognitive training for better socialization.

The Relationship between Age-Related Hearing Loss and Cognitive Disorder.

BACKGROUND: Although the rates of occurrence of age-related diseases, including presbycusis and cognitive disorders, have increased with an increase in the geriatric population, the relationship between these two conditions remains unclear. OBJECTIVE: To investigate the association between presbycusis and cognitive disorder. SUBJECTS AND METHODS: A retrospective review of patient medical records was conducted at a single tertiary university hospital. This study enrolled 399 patients aged ≥65 years who were prescribed hearing aids for the chief complaint of hearing loss. For main outcomes and measures we used audiograms, the Korean Mini-Mental State Examination, and the Global Deterioration Scale (GDS). RESULTS: Of the 399 patients who were prescribed hearing aids for presbycusis, 45 (11.3%) had dementia and 354 (88.7%) did not have dementia. When the cognitive disorder group was divided into mild (1-4) and severe (5-7) subgroups based on the GDS scores, the threshold of hearing loss was significantly higher in the severe group than in the mild group (p < 0.05). The prevalence of dementia was significantly higher in patients with hearing loss for ≥10 years than in patients with hearing loss for <10 years (p < 0.05). CONCLUSION: Presbycusis and cognitive disorder are correlated. More severe and prolonged hearing loss is associated with a higher prevalence of cognitive disorder.