Smartphone-Facilitated In-Situ Hearing Aid Audiometry for Community-Based Hearing Testing.

OBJECTIVES: Hearing loss prevalence is increasing, with an estimated 2.5 billion people affected globally by 2050. Scalable service delivery models using innovative technologies and task-shifting are World Health Organization priorities to improve access to hearing care, particularly in low- and middle-income countries. Smartphone-facilitated audiometry in the community using hearing aids covered by noise-attenuating ear cups ("in-situ") could support more accessible hearing care when provided by less trained individuals such as community health workers (CHWs). This study aimed to determine the validity of this method for potential hearing aid fitting. Study objectives included determining the maximum permissible ambient noise level (MPANL), inter-device reliability, clinical threshold accuracy, reliability, and performance in real-world settings. DESIGN: Experiment 1: 15 normal-hearing adult participants were evaluated to determine MPANLs for circumaural Peltor 3M earcups covering Lexie Lumen hearing aids with smartphone-facilitated in-situ audiometry. MPANLs were calculated by measuring the difference in attenuation between thresholds obtained with standard headphones and in-situ hearing aids. Experiment 2: Pure-tone frequency and intensity output of 14 same-model Lexie Lumen hearing aids were measured to determine inter-device reliability. Pure-tone stimuli were measured and analyzed to determine sound pressure levels in decibels and pure-tone frequency when connected to a test box 2cc coupler. Experiment 3: 85 adult participants were tested in a sound booth to determine the accuracy of automated in-situ pure-tone audiometry (PTA) compared to clinical PTA (500, 1000, 2000, 3000, 4000, 6000 Hz) facilitated by an audiologist. The first 39 participants were tested twice to determine test-retest reliability. Experiment 4: In a community setting, 144 adult participants were tested with automated in-situ audiometry facilitated by CHWs using a smartphone app. These participants were subsequently tested with automated mobile PTA (500, 1000, 2000, 4000 Hz). An additional 44 participants were tested twice to determine test-retest reliability. RESULTS: Experiment 1: MPANLs of the Peltor 3M earcup-covered hearing aids were higher than standard headphones across all frequencies, ranging from 24 to 47.3 dB SPL. Experiment 2: Inter-device performance reliability was high, with all inter-device differences across all intensities and frequencies less than 3 dB. Frequency output was consistent and differed less than 0.7% between devices. Experiments 3 and 4: 85.2% and 83.3% of automated in-situ audiometry thresholds were within 10 dB of thresholds obtained in the sound booth and in a community setting, respectively. Acceptable test-retest intraclass correlation coefficient (ICC) was evident across all thresholds obtained in a sound booth (ICC = 0.85 to 0.93) and in a community setting (ICC = 0.83 to 0.97). CONCLUSIONS: Smartphone-facilitated in-situ audiometry allows for reliable and valid community-based testing. A simple smartphone user interface and automated in-situ audiometry allow CHWs with minimal training to facilitate the testing. With the additional capability to program hearing aids via the smartphone after the initial test, this approach would have the potential to support widespread access to personalized hearing aid fittings facilitated by CHWs in low- and middle-income countries. This approach also supports self-fitting options based on in-situ thresholds, enabling testing and fitting via over the counter hearing aids.

Hearing help-seeking, hearing device uptake and hearing health outcomes in individuals with subclinical hearing loss: a systematic review.

OBJECTIVE: This systematic review aims to examine the current literature on help-seeking, hearing device uptake, and hearing health outcomes in individuals with subclinical hearing loss. DESIGN: Systematic review. STUDY SAMPLE: Searches of three databases (CINAHL, MEDLINE (PubMed), and Scopus) yielded nine studies meeting the inclusion criteria. The quality of the included studies was determined using the National Institute of Health quality assessment tool. The studies' level of evidence was determined according to the Centre for Evidence-Based Medicine. RESULTS: All included studies involved adult participants. Three studies examined help-seeking. Self-reported difficulty, poor speech-in-noise performance, and emotional responses to the hearing difficulty were identified as factors influencing help-seeking. Six studies examined the use of hearing devices as an intervention, including hearing aids (n = 4), hearables (n = 1), and FM systems (n = 1). Using hearing devices improved self-perceived hearing difficulty, speech-in-noise understanding, and motivation to address hearing difficulties. No studies focused on hearing device uptake. The quality assessment indicated limited methodological rigour across the studies, with varying levels of evidence. CONCLUSIONS: Current evidence supports the use of hearing devices as an intervention for individuals with subclinical hearing loss. However, more research is essential, particularly focusing on help-seeking, diagnosis, treatment, and long-term outcomes using well-controlled study designs.

Digits in noise testing in a multilingual sample of Asian adults.

OBJECTIVE: Appropriate speech-in noise assessment is challenging in multilingual populations. This study aimed to assess whether first preferred language affected performance on an English Digits-in-noise (DIN) test in the local Asian multilingual population, controlling for hearing threshold, age, sex, English fluency and educational status. A secondary aim was to determine the association between DIN test scores and hearing thresholds. DESIGN: English digit-triplets in noise testing and pure-tone audiometry were conducted. Multiple regression analysis was performed with DIN scores and hearing thresholds as dependent variables. Correlation analysis was performed between DIN-SRT and hearing thresholds. STUDY SAMPLE: 165 subjects from the Singapore Longitudinal Ageing Study, a population-based longitudinal study of community-dwellers over 55 years of age. RESULTS: Mean DIN speech reception threshold (DIN-SRT) was -5.7 dB SNR (SD 3.6; range 6.7 to -11.2). Better ear pure tone average and English fluency were significantly associated with DIN-SRT. CONCLUSIONS: DIN performance was independent of first preferred language in a multilingual ageing Singaporean population after adjusting for age, gender and education. Those with poorer English fluency had a significantly lower DIN-SRT score. The DIN test has the potential to provide a quick, uniform method of testing speech in noise in this multilingual population.

Hearing and Functioning in Everyday Life Questionnaire: Development and Validation of an ICF-Based Instrument.

OBJECTIVES: Self-assessment instruments are commonly used in audiological rehabilitation. However, several studies highlight the lack of multidimensionality in existing outcome measures, with the consequence that they only partially capture aspects of functioning in everyday life for people living with hearing loss. This study aimed to develop and investigate the content validity of a self-assessment instrument based on the validated Brief International Classification of Functioning, Disability, and Health Core Set for Hearing Loss. DESIGN: The design was a two-part instrument development study. The first part focused on the item-generation process of the instrument, named the Hearing and Functioning in Everyday Life Questionnaire (HFEQ) during an experts' workshop. The second part focused on international content validation of the instrument using group interviews. Strategic sampling was used and 30 adults with hearing loss from India, South Africa, and the United States participated in the group interviews. RESULTS: The expert's workshop resulted in the first version of the HFEQ containing 30 items. The results from group interviews show that the content of the HFEQ was considered to be valid concerning its relevance, comprehensiveness, and comprehensibility. A majority (73%) of the HFEQ items were perceived by the participants as relevant and easy to comprehend. For the remaining 27% of the items, the content was perceived to be relevant in all countries, but some terms and expressions were reported to require rewording or clearer examples. These modifications will be made in the next step of the development process. CONCLUSION: Content validation of the HFEQ demonstrates promising results, with participants perceiving the content as relevant and comprehensible. Further psychometric validation is required to investigate other psychometric properties, such as construct validity and reliability. The HFEQ has the potential to become a valuable new instrument for assessing everyday functioning in people with hearing loss in audiological rehabilitation and in research.

Sensitivity of the antiphasic digits-in-noise test to simulated unilateral and bilateral conductive hearing loss.

OBJECTIVES: The objective of this study is (1) to assess whether the presentation level of the antiphasic digits-in-noise (DIN) test affects the speech recognition threshold (SRT), (2) to evaluate how accurately simulated unilateral and bilateral conductive hearing loss is detected (CHL) and (3) to determine whether increasing the presentation level normalises the antiphasic DIN SRT. DESIGN: Participants performed antiphasic and diotic DINs at different presentation levels with unilateral, bilateral or no earplugs. STUDY SAMPLE: Twenty-four and twelve normal hearing adults. RESULTS: Without earplugs, antiphasic DIN SRTs did not differ between 60 and 80 dB SPL. At 60 dB SPL, the antiphasic DIN correctly classified 92% of the unilateral earplug cases; the diotic DIN 25%. The binaural intelligibility level difference did not differ between the no-earplug condition and the condition with bilateral earplugs when the presentation was increased with the attenuation level. CONCLUSIONS: In normal hearing participants, diotic and antiphasic DIN SRTs are independent of presentation level above a minimum level of 60 dB SPL. The antiphasic DIN is more sensitive than the diotic DIN for detecting unilateral CHL; not for bilateral CHL. The effect of CHL on DIN SRTs can be largely compensated by increasing the presentation level. Audibility plays an important role in the antiphasic and diotic DIN.

Reasons for hearing aid uptake in the United States: a qualitative analysis of open-text responses from a large-scale survey of user-perspectives.

OBJECTIVE: This study aimed to explore the main reasons for hearing aid uptake from a user perspective and recommendations to others with hearing difficulties. DESIGN: A cross-sectional survey design was used. Responses to a single open-ended question were analysed using qualitative content analysis. STUDY SAMPLE: Participants (n = 642) included adult hearing aid users sampled from the Hearing Tracker website community and Lexie Hearing user databases in the United States. RESULTS: Participants had a mean age of 65.4 years (13.7 SD) and included 61.8% males, 37.7% females, 0.3% non-binary, and 0.2% preferred not to say. Reasons for hearing aid uptake were categorised into three domains (personal impact, social difficulties, and auditory difficulties), containing 11 main categories and 48 sub-categories. User recommendations to others with hearing difficulties constituted eight main categories (timely help, trial period, support, affordability, technology, direct-to-consumer hearing aids, adjustments, and advocacy) and 32 sub-categories. CONCLUSIONS: The decision to take up hearing aids included intrinsic factors like readiness to change and extrinsic factors such as the availability of finances. The most frequent recommendation to others was not to delay seeking hearing help and to get hearing aids. Our findings may support strategies to facilitate behaviour change for improved hearing aid uptake.

Factors influencing hearing aid use, benefit and satisfaction in adults: a systematic review of the past decade.

OBJECTIVE: This systematic review examined the audiological and non-audiological factors that influence hearing aid use, benefit and satisfaction in adults based on studies published during the last decade (2010 and 2023). DESIGN: Studies were identified by using PRISMA guidelines for systematic searches on five platforms (Web of Science, Scopus, PubMed, EBSCOhost including CINAHL and Academic Search Complete). The National Institute of Health Quality assessment tool and the Oxford Centre for Evidence Based Medicine tool were used for quality assessment and grading of level of evidence. RESULTS: Forty-six articles were included in the review. A total of 101 significant factors influencing hearing aid use (n = 47), benefit (n = 17) and satisfaction (n = 37) were identified. Clear determinants of hearing aid use, benefit and satisfaction included hearing sensitivity, self-reported hearing difficulty, speech perception, attitude and beliefs. 34 cross-sectional studies in this review were graded level 4, 9 cohort studies rated level 3, and 3 randomised control trials rated level 2. CONCLUSION: Factors associated with hearing aid outcomes identified in the past decade support previous evidence. New factors like social networks and service-delivery models, have also been identified. These factors require further investigations through high quality studies to further strengthen existing evidence.

Satisfaction with hearing assessment feedback using the My Hearing Explained tool: client and audiologist perceptions.

OBJECTIVE: To determine the perceived satisfaction and understanding of hearing assessment feedback, using the Ida My Hearing Explained Tool (IMHET), compared to the standard audiogram reported by adult clients and audiologists. DESIGN: This study is a mixed-method design comparing clients and audiologists' perceptions through a single-blinded, randomised control trial and focus group discussions. After using either the audiogram or IMHET for feedback, clients and audiologists completed the adapted Patient Satisfaction Questionnaire (PSQ). STUDY SAMPLE: During client's initial audiological consultations, audiologists provided hearing assessment feedback (Total = 51) using the IMHET or audiogram. Twenty-seven clients and seven audiologists participated in focus groups, and/or open-ended questions. RESULTS: Satisfaction was not significantly different (p > 0.05) between the IMHET (76.18; SD: 2.66) or audiogram (75.63; SD: 4.73) for the overall PSQ scores reported by clients and audiologists. Two shared main themes, understanding and satisfaction, were identified for both tools from the focus groups and open-ended questions. A third main theme, recommendations, was identified only for the IMHET. CONCLUSIONS: The IMHET is a valuable resource for clients during hearing assessment feedback. Audiologists recommend that the audiogram be used as a supplement when using the IMHET to provide feedback.

Changes in audiologists' mental wellbeing during the COVID-19 pandemic: the supportive role of professional associations, workplaces and hearing device manufacturers.

Objective: The purpose of this study was to explore whether self-reported mental wellbeing (anxiety, depression and loneliness) in audiologists has changed over the course of the COVID-19 pandemic and to examine possible factors contributing to audiologists' current state of mental wellbeing.Design: Two cross-sectional surveys were distributed at two different time points during the COVID-19 pandemic screening for psychological distress (PHQ-4: anxiety and depression) and loneliness (UCLA-3).Study sample: 117 audiologists from around the world.Results: Findings demonstrated that over the course of the COVID-19 pandemic audiologists' levels of depression decreased, levels of anxiety were low and stable, whilst levels of loneliness were stable and high. Younger age was associated with lower levels of mental well-being. Responses to open text questions suggests that audiologists could be supported through development of clear and consistent guidelines on COVID-19 workplace restrictions, allowing for more workplace flexibility and providing mental health support through employee assistance programs.Conclusions: The rates of anxiety, depression and loneliness observed highlight the continued need for mental health and workplace interventions to support audiologists throughout the COVID-19 pandemic and the subsequent recovery period.

A multiphased cultural and contextual adaptation of the Parents' Evaluation of Developmental Status tools for a low-income community: A South African case study.

INTRODUCTION: Culturally relevant developmental screening is one of the best ways to appropriately identify developmental delays and disabilities in children as early as possible across diverse cultural backgrounds. This study aimed to adapt the Parents' Evaluation of Developmental Status (PEDS) tools for a low-income community in South Africa by using a detailed multiphased cultural and contextual adaption process. METHOD AND RESULTS: A three-phase mixed-method design relying on triangulation of data was used. Data were collected at an immunization clinic in a low-income community in Mamelodi, South Africa. Phase 1 was a focus group discussion with 11 community participants. The topics explored the possible changes to the PEDS tools to make them more relevant to the community. Phase 1 informed Phase 2 where 12 early childhood development experts achieved consensus through a two-round survey on a modified Delphi method. In Phase 3, a draft of the PEDS tools-SA was presented to the authors of the PEDS tools for final approval. Of 55 questions that were adapted for the PEDS tools-SA, two original questions (3.6%), 14 questions from the expert suggestions (25.4%) and 39 from the community participant's suggestions (71%) were included. A final version of the PEDS tools-SA was created. CONCLUSION: This study used a systematic method to adapt the PEDS tools to create the culturally appropriate PEDS tool-SA for a low-income community in South Africa, informed by community stakeholders' views from the first step. This resulted in a high-quality adaptation process that is more likely to result in a tool that is more acceptable to caregivers from a low-income South African community.

Advancing Equitable Hearing Care: Innovations in Technology and Service Delivery.

BACKGROUND: Hearing loss is a neglected global health priority affecting 1.5 billion persons. Global access to hearing care is severely limited with management options, like hearing aids, inaccessible to most. The cost and centralised nature of traditional service-delivery approaches in hearing care have undermined equitable access alongside poor awareness. SUMMARY: Recent innovations in digital and mHealth hearing technologies used by health workers through task shifting are enabling novel community-based services across the continuum of care. This narrative review explores technology-enabled hearing care in communities. We provide examples focused on our work over the past decade to explore more equitable hearing care across primary, secondary, and tertiary levels of prevention. KEY MESSAGES: Hearing health innovations have the potential to increase access to care, improve the quality of life for those affected by hearing loss, and reduce global costs associated with untreated hearing loss. More equitable hearing care is a global health priority that requires scalable service-delivery models enabled by innovative technologies within communities and integrated into public health initiatives including hearing health promotion.

The hearing aid effect across diverse African populations and various hearing device modalities.

INTRODUCTION: The stigma associated with wearing hearing aids, known as the "hearing aid effect," remains a significant issue in hearing healthcare. Despite notable changes in the look and feel of hearing aids over the last decade, little is known about the influence of socioeconomic factors on the perception of different hearing devices in a socioeconomically diverse setting. OBJECTIVE: To determine the hearing aid effect across a range of hearing devices and its association with socioeconomic factors, namely area of residence and level of education across African communities. METHOD: The study used a cross-sectional design with 322 participants (161 rural, 161 urban); mean age 31.9 years (14.7 SD). Participants rated photographs of seven different styles of devices [standard behind-the-ear hearing aid (BTE HA) with an earmould, mini BTE HA with a slim tube (ST), in-the-canal (ITC) HA, Airpod, receiver-in-canal (RIC), completely-in-canal (CIC) HA, and Personal Sound Amplification Product (PSAP)] worn by a peer model using a validated scale of eight attributes (attractiveness , age, success, hardworking, trustworthiness, intelligence, friendliness, education). The ratings of the BTE HA with earmould were used as a benchmark for comparison. RESULTS: No hearing aid effect was observed across all participants (n=322) with device ratings ranging between neutral and positive. Significant differences between device ratings were evident for attractiveness for ST and PSAP and trustworthiness for ITC. In terms of residence, urban participants provided more favorable ratings compared to rural participants, with significant differences across three attribute ratings: hardworking for ST; attractiveness, hardworking for ITC; age for RIC and Airpod and hardworking for PSAP. For level of education, significant differences were found for attributes of attractiveness (H = 13.5; p = 0.001) for ITC; attractiveness (H = 14.7, p = 0.001) for PSAP; age (H = 9.5; p = 0.009) for RIC; age (H = 14.3; p<0.001) and intelligence (H = 15.1; p< 0.001) for Airpod and; hardworking (H =11.9, p = 0.003) for ST. CONCLUSION: Overall, participants had a neutral to positive view of hearing devices with preferences for less visible, conventionally styled devices. Socioeconomic variables such as educational attainment and geographical location influence perceptions of hearing devices emphasizing the importance of taking these aspects into account when prescribing hearing devices.

Diotic and Antiphasic Digits-in-noise Testing as a Hearing Screening and Triage Tool to Classify Type of Hearing Loss.

OBJECTIVES: The digits-in-noise test (DIN) is a popular self-test measure that has traditionally been used to screen for hearing loss by providing either a pass or refer result. Standard approaches either tested each ear monaurally or used a binaural diotic version where identical digits and noise were presented simultaneously to both ears. Recently, a dichotic, antiphasic version was developed, increasing sensitivity of the DIN to unilateral or asymmetric sensorineural hearing loss (SNHL) and conductive hearing loss (CHL). The purpose of this study was to determine predictors and normative ranges of the antiphasic and diotic DIN and to determine if a combination of diotic and antiphasic DIN could accurately categorize hearing into (1) normal, (2) bilateral SNHL, or (3) unilateral SNHL or CHL. DESIGN: The analytical sample consisted of 489 participants between the ages of 18 and 92 years with varying types, symmetry, and degrees of hearing loss. Degree and type of hearing loss were determined based on standard clinical four-frequency (0.5-4 kHz) pure-tone air and bone conduction threshold averages. The sample consisted of bilateral normal hearing (n = 293), bilateral SNHL (n = 172), unilateral SNHL (n = 42), and CHL (n = 32). All participants (n = 489) first completed an antiphasic DIN (digit stimuli 180° out-of-phase between ears), while 393 of the sample also completed a diotic DIN. Two procedures were assessed for their ability to categorize hearing into one of the three hearing groups. The first used a fixed antiphasic cutoff combined with a cutoff formed by a linear combination of antiphasic and diotic speech recognition threshold (SRT) or binaural intelligibility-level difference. RESULTS: Poorer ear pure-tone average was the strongest predictor of antiphasic DIN score, whereas better ear pure-tone average explained more of the variance in diotic SRT. The antiphasic DIN sensitivity and specificity was 90% and 84%, respectively, for detecting hearing loss, with outstanding area under the receiver operating characteristics values exceeding 0.93 to identify hearing loss in the poorer ear. The first fixed SRT cutoff procedure could categorize 75% of all participants correctly, while the second procedure increased correct categorization to 79%. False negative rates for both procedures were below 10%. CONCLUSIONS: A sequential antiphasic and diotic DIN could categorize hearing to a reasonable degree into three groups of (1) normal hearing; (2) bilateral SNHL; and (3) unilateral asymmetric SNHL or CHL. This type of approach could optimize care pathways using remote and contactless testing, by identifying unilateral SNHL and CHL as cases requiring medical referral. In contrast, bilateral SNHL cases could be referred directly to an audiologist, or nontraditional models like OTC hearing aids.

Prevalence and characteristics of hearing and vision loss in preschool children from low income South African communities: results of a screening program of 10,390 children.

BACKGROUND: The majority of children with sensory impairments live in low- and middle-income countries. More studies of hearing and vision impairment prevalence are needed, in order to generate more accurate estimates of trends in sensory impairments. This study aimed to estimate the prevalence and describe the characteristics of hearing and vision loss among preschool children (4-7 years) in an underserved South African community following community-based mobile health (mHealth) supported hearing and vision services. METHODS: A screening program of sensory impairments was undertaken of children attending preschools in the communities of Khayelitsha and Mitchell's Plain, Cape Town, from September 2017 until June 2019. Hearing and vision screening were done by trained community health workers using mHealth technology. Children who failed hearing and vision screening were seen for follow-up assessments at their preschools. Follow-up assessments were conducted using smartphones that host point-of-care validated and calibrated hearing and vision testing applications (hearTest app, hearX Group, South Africa and PeekAcuity app, Peek Vision, United Kingdom). Descriptive statistical analysis and logistic regression analysis were conducted after extracting data from a secure cloud-based server (mHealth Studio, hearX Group) to Microsoft Excel (2016). RESULTS: A total of 10,390 children were screened at 298 preschools over 22 months. Of the children screened, 5.6 and 4.4% of children failed hearing and vision screening respectively. Community-based follow-up hearing tests were done at the preschools on 88.5% (514) of children of whom 240 children (54.2% female) presented with hearing loss. A preschool-based follow-up vision test was done on 400 children (88.1%). A total of 232 children (46.1% female) had a vision impairment, and a further 32 children passed the test but had obvious signs of ocular morbidity. Logistic regression analysis found that age was a significant predictor of vision loss (p < 0.05), but not for hearing loss (p = 0.06). Gender was not a significant predictor of hearing (p = 0.22) or vision loss (p = 0.20). CONCLUSIONS: Hearing loss is prevalent in at least 22 per 1000 and vision loss in at least 23 per 1000 preschool children in an underserved South African community. Timely identification of sensory losses can be facilitated through community-based hearing and vision services supported by mHealth technology.

Extended high-frequency hearing enhances speech perception in noise.

Young healthy adults can hear tones up to at least 20 kHz. However, clinical audiometry, by which hearing loss is diagnosed, is limited at high frequencies to 8 kHz. Evidence suggests there is salient information at extended high frequencies (EHFs; 8 to 20 kHz) that may influence speech intelligibility, but whether that information is used in challenging listening conditions remains unknown. Difficulty understanding speech in noisy environments is the most common concern people have about their hearing and usually the first sign of age-related hearing loss. Digits-in-noise (DIN), a widely used test of speech-in-noise perception, can be sensitized for detection of high-frequency hearing loss by low-pass filtering the broadband masking noise. Here, we used standard and EHF audiometry, self-report, and successively higher cutoff frequency filters (2 to 8 kHz) in a DIN test to investigate contributions of higher-frequency hearing to speech-in-noise perception. Three surprising results were found. First, 74 of 116 "normally hearing," mostly younger adults had some hearing loss at frequencies above 8 kHz. Early EHF hearing loss may thus be an easily measured, preventive warning to protect hearing. Second, EHF hearing loss correlated with self-reported difficulty hearing in noise. Finally, even with the broadest filtered noise (≤8 kHz), DIN hearing thresholds were significantly better (P < 0.0001) than those using broadband noise. Sound energy above 8 kHz thus contributes to speech perception in noise. People with "normal hearing" frequently report difficulty hearing in challenging environments. Our results suggest that one contribution to this difficulty is EHF hearing loss.

Digital Approaches to Automated and Machine Learning Assessments of Hearing: Scoping Review.

BACKGROUND: Hearing loss affects 1 in 5 people worldwide and is estimated to affect 1 in 4 by 2050. Treatment relies on the accurate diagnosis of hearing loss; however, this first step is out of reach for >80% of those affected. Increasingly automated approaches are being developed for self-administered digital hearing assessments without the direct involvement of professionals. OBJECTIVE: This study aims to provide an overview of digital approaches in automated and machine learning assessments of hearing using pure-tone audiometry and to focus on the aspects related to accuracy, reliability, and time efficiency. This review is an extension of a 2013 systematic review. METHODS: A search across the electronic databases of PubMed, IEEE, and Web of Science was conducted to identify relevant reports from the peer-reviewed literature. Key information about each report's scope and details was collected to assess the commonalities among the approaches. RESULTS: A total of 56 reports from 2012 to June 2021 were included. From this selection, 27 unique automated approaches were identified. Machine learning approaches require fewer trials than conventional threshold-seeking approaches, and personal digital devices make assessments more affordable and accessible. Validity can be enhanced using digital technologies for quality surveillance, including noise monitoring and detecting inconclusive results. CONCLUSIONS: In the past 10 years, an increasing number of automated approaches have reported similar accuracy, reliability, and time efficiency as manual hearing assessments. New developments, including machine learning approaches, offer features, versatility, and cost-effectiveness beyond manual audiometry. Used within identified limitations, automated assessments using digital devices can support task-shifting, self-care, telehealth, and clinical care pathways.

The one-up one-down adaptive (staircase) procedure in speech-in-noise testing: Standard error of measurement and fluctuations in the track.

The one-up one-down adaptive (staircase or up-down) procedure is often used to estimate the speech recognition threshold (SRT) in speech-in-noise testing. This article provides a brief historical overview of the one-up one-down procedure in psychophysics, discussing the groundbreaking early work that is still relevant to clinical audiology and scientific research. Next, this article focuses on two aspects of the one-up one-down adaptive procedure: first, the standard error of measurement (SEM) and, second, the fluctuations in the track [i.e., the standard deviation of the signal-to-noise ratios of the stimuli within the track (SDtrack)]. Simulations of ideal and non-ideal listeners and experimental data are used to determine and evaluate different relationships between the parameters slope of the speech recognition function, SRT, SEM, and SDtrack. Hearing loss and non-ideal behavior (inattentiveness, fatigue, and giving up when the task becomes too difficult) slightly increase the average value of SDtrack. SDtrack, however, poorly discriminates between reliable and unreliable SRT estimates.

International survey of audiologists during the COVID-19 pandemic: effects on the workplace.

OBJECTIVE: This study surveyed the effects of the COVID-19 pandemic on the audiology workplace. DESIGN: The study used a cross-sectional survey design for audiologists across the globe (n = 337) using an online survey (June-August 2020) focussing on changes to the workplace during the pandemic. RESULTS: Participants represented varied work settings and audiology services. Only a third (31.5%) provided psychosocial support, which may be important during the pandemic, as part of their services. Almost all (97%) audiologists reported changes to their workplace, with 76.4% reporting reduced caseloads during the COVID-19 pandemic. When rating their current and anticipated work conditions, 38.7% reported reduced working hours although only 13.8% anticipated reduced working hours in 6-months' time. Audiologists ranked services such as access to hearing assessment, hearing device adjustment and maintenance, and general audiological support as being more important during the pandemic than services such as psychosocial, emotional and tinnitus support. CONCLUSIONS: The COVID-19 pandemic has resulted in significant disruptions to audiological practice that highlights the need to adapt and incorporate new audiological practices including telehealth, to ensure patients have continued access to care and clinics remain sustainable during the ongoing COVID-19 pandemic and recovery phase.

Predictors of hearing technology use in children.

OBJECTIVE: To identify and describe predictors of daily hearing technology (HT) use in children. DESIGN: Retrospective review of clinical records. Multiple regression analyses were performed to identify predictors. STUDY SAMPLE: The sample included 505 children (<11 years of age) using hearing aids (HAs), cochlear implants (CIs), and bone conduction hearing devices (BCHDs). RESULTS: Average HT use was 9.4 h a day. Bivariate analyses yielded 31 potential predictors from the 42 variables included. The general linear model (p < 0.01, R2 = 0.605) identified 10 interacting factors that significantly associated with increased HT use. Intrinsic predictors of increased HT use included older chronological age, more severe degrees of hearing loss and older ages at diagnosis and initial HA fitting. Extrinsic predictors included the child's ability to independently use HT, at least one CI as part of the HT fitting, coordinated onsite audiological management, self-procured batteries, auditory-oral communication mode and regular caregiver intervention attendance. CONCLUSIONS: Average HT use was high, approximating hearing hours of peers with normal hearing. CI recipients demonstrated higher HT use compared to children using other HT. The newly identified factors can predict and increase HT use in children while contributing to evidence-based intervention services that promote optimal auditory-based outcomes.

International survey of audiologists during the COVID-19 pandemic: use of and attitudes to telehealth.

OBJECTIVE: To determine the attitudes of audiologists towards telehealth and use of telehealth for the delivery of ear and hearing services pre-, during- and post- the COVID-19 pandemic, and to identify the perceived effects of telehealth on services and barriers to telehealth. DESIGN: An online survey distributed through the International Society of Audiology and member societies. STUDY SAMPLE: A total of 337 audiologists completing the survey between 23 June and 13 August 2020. RESULTS: There was a significant increase in the perceived importance of telehealth from before (44.3%) to during COVID-19 (87.1%), and the use of telehealth previous (41.3%), current (61.9%) and expected use of telehealth (80.4%). Telehealth was considered adequate for many audiology services, although hearing assessment and device fitting by telehealth received least support. Matters related to timeliness of services and reduction of travel were reported as the main advantages, but relationships between practitioners and clients may suffer with telehealth. Important barriers were technologies related to the client or remote site; clinic-related items were moderate barriers, although more clinician training was a common theme provided through open-ended responses. CONCLUSION: The COVID-19 pandemic has resulted in audiologists having a more positive attitude towards and greater use of telehealth, but with some reservations.