Rong Tian

Introduction: In Australia, older Aboriginal and Torres Strait Islander people have the highest prevalence of hearing loss, for which dedicated audiological services are available.However, there is limited research on the experiences older Aboriginal and Torres Strait Islander people have with hearing loss and audiological services. Therefore, this study aimed to consolidate existing literature with a scoping review, specifically on the above to identify gaps and guide future research.Method: Ten databases, including electronic journal databases and government databases, were systematically searched. Additional studies were sought from article reference lists, review articles, conference abstracts and Google Scholar. We identified 540 records and 22 of them met our inclusion criteria. Our inclusion criteria constituted research of any design on the experiences of older Aboriginal and Torres Strait Islander people (aged 45+ years) with hearing loss and audiological services.Results: Seventeen studies reported on experiences with hearing loss, four studies reported on experiences with audiological services and one study reported on both experiences. Prevalence of hearing loss was estimated to be 20%–34% in older Aboriginal and Torres Strait Islander people; a discrepancy between self‐reported and objective hearing difficulties was also identified. Audiological services currently available to older Aboriginal and Torres Strait Islander people were also underutilised.Conclusions: Future research on older Aboriginal and Torres Strait Islander people is required to uncover: (1) the reasons for underreported hearing loss; (2) types of hearing loss experienced; (3) barriers to accessing audiological services; and (4) best hearing‐loss management and rehabilitation practices.

Background and Objectives: Substantial evidence supports the association between untreated hearing loss, cognitive decline, and dementia in the non-tonal language-speaking population. Whether a similar association between hearing loss and cognitive decline and dementia exists in Sinitic tonal language-speaking people is yet to be elucidated. We aimed to systematically review the current evidence on the association between hearing loss and cognitive impairment/decline, and dementia in older adults who speak a Sinitic tonal language.Research Design and Methods: This systematic review considered peer-reviewed articles that employed objective or subjective hearing measurement and cognitive function, cognitive impairment, or diagnosis of dementia. All articles written in English and Chinese and published before March 2022 were included. Databases including Embase, MEDLINE, Web of Science, PsycINFO and Google Scholar, SinoMed, and CBM were utilized using MeSH terms and keywords.Results: Thirty-five articles met our inclusion criteria. Of these, 29 unique studies with an estimated 372,154 participants were included in the meta-analyses. Among all included studies, the effect size of cognitive function with hearing loss, the regression coefficient was −0.26 (95% confidence interval [CI], −0.45 to −0.07). Among cross-sectional and cohort studies, a significant association was found between hearing loss and cognitive impairment and dementia, with odds ratios of 1.85 (95% CI, 1.59–2.17) and 1.89 (95% CI, 1.50–2.38), respectively.Discussion and Implications: Most of the studies included in this systematic review observed a significant association between hearing loss and cognitive impairment and dementia. There was no significant difference to the findings in non-tonal language populations.