DeWet Swanepoel

DeWet Swanepoel
University of Pretoria | UP · Department of Speech Language Pathology and Audiology

PhD

About

280
Publications
88,918
Reads
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5,039
Citations
Introduction
Research interests include development and evaluation of innovative service delivery models, technologies and applied solutions to improve access to early development and health services, particularly in ear and hearing care.
Additional affiliations
January 2012 - present
Ear Science Institute Australia
Position
  • Senior Researcher
October 2011 - present
University of Western Australia
Position
  • Professor (Associate)
January 2010 - present

Publications

Publications (280)
Article
Full-text available
Introduction Hearing aids are a frequent management option for children with conductive hearing loss (CHL) and it is necessary to determine the efficacy of outcomes. Limited information regarding caregivers' perceptions and experiences are available to examine outcomes in this population. Objectives To describe hearing aid outcomes and caregivers'...
Article
Full-text available
Telehealth promises increased access to hearing healthcare services, primarily in areas where hearing healthcare resources are limited, such as within the South African public healthcare system. Telehealth for hearing healthcare is especially important during the COVID-19 pandemic, where physical distancing has been essential. This study aimed to d...
Article
Purpose: The COVID-19 pandemic has accelerated the uptake and scope of telehealth. This study determined the accuracy and reliability of a smartphone digits-in-noise (DIN) test when conducted by adult cochlear implant (CI) recipients in a simulated home environment compared with a clinic setup. Perceptions of remote monitoring using speech-in-nois...
Article
Although the World Health Organization (WHO) recommends the use of a Community‐Based Rehabilitation (CBR) model, little is known about how CBR has been applied in the hearing healthcare setting. The purpose of this scoping review was to identify and describe studies on Community‐Based Hearing Rehabilitation (CBHR) programs within the applied contex...
Article
Full-text available
Background: Otitis media includes several common inflammatory conditions of the middle ear that can have severe complications if left untreated. Correctly identifying otitis media can be difficult and a screening system supported by machine learning would be valuable for this prevalent disease. This study investigated the performance of a convolut...
Preprint
Full-text available
The COVID-19 pandemic highlighted the need for remote, but reliable hearing tests. Previous studies used remote testing but did not directly compare results in the same listeners with standard lab testing. Digits-in-noise (DIN) is a reliable speech-in-noise test that can be self-administered remotely. This study investigated the predictive validity...
Article
The Parents’ Evaluation of Developmental Status (PEDS), PEDS: Developmental Milestones (PEDS: DM) and PEDS tools (i.e., the PEDS and PEDS:DM combined for use) are parent-reported screening tools frequently used to identify young children requiring early intervention. An ideal screening tool for all contexts would be brief, inexpensive with appropri...
Article
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 t...
Article
Full-text available
Service-delivery model to provide community-based hearing care by community health workers supported by mHealth technologies.
Article
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,...
Article
Full-text available
Background: South Africa has a high burden of drug-resistant tuberculosis (DRTB) and until recently, ototoxic aminoglycosides were predominant in treatment regimens. Community-based ototoxicity monitoring programmes (OMPs) have been implemented for early detection of hearing loss and increased patient access. Objectives: A longitudinal study was c...
Article
Full-text available
Introduction Face coverings and distancing as preventative measures against the spread of the Coronavirus disease 2019 may impact communication in several ways that may disproportionately affect people with hearing loss. A scoping review was conducted to examine existing literature on the impact of preventative measures on communication and to char...
Article
Purpose: Online reviews have become increasingly common for consumers to share their experiences about products and to assist potential consumers with decision making. The current study was aimed to understand the hearing aid user experience from online consumer reviews using qualitative analysis. Method: The study used a qualitative thematic an...
Article
Full-text available
Background: National information regarding ototoxicity monitoring practices are limited for patients undergoing chemotherapy in South Africa. Objectives: To determine (1) the national status of ototoxicity monitoring implemented in private and public cancer facilities, (2) the knowledge and ototoxicity monitoring approaches implemented, and (3) rep...
Article
Full-text available
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...
Article
Introduction: Mobile health (m-health) has the potential to improve access and uptake of health services globally. Noncommunicable diseases such as hearing loss have seen increasing use of m-health approaches to improve access, scalability, penetration, quality, and convenience of health services. This scoping review describes published research in...
Article
The World Health Organization defines health promotion as process of enabling people to increase control over their health and its determinants, and thereby improve their health. As the world transitions into the information age, incorporating digital technologies into health promotion is becoming commonplace. This article discusses current applica...
Article
Purpose This study compared the test characteristics, test–retest reliability, and test efficiency of three novel digits-in-noise (DIN) test procedures to a conventional antiphasic 23-trial adaptive DIN (D23). Method One hundred twenty participants with an average age of 42 years ( SD = 19) were included. Participants were tested and retested with...
Article
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. Recent...
Article
Objective To describe hearing aid outcomes for children with bilateral sensorineural hearing loss (SNHL) at a pediatric public hospital in South Africa in terms of daily use and oral/aural performance. Materials and methods Retrospective review of clinical data and caregiver reported outcomes of children aged 0–13 years with bilateral SNHL at one-...
Article
Full-text available
In response to the drug-resistant tuberculosis (DRTB) ototoxicity burden in South Africa, ototoxicity monitoring has been decentralised, with community health workers (CHWs) acting as facilitators. This study describes a community-based ototoxicity monitoring programme (OMP) for patients with DRTB. Findings are compared to the recommended guideline...
Article
Full-text available
In France 58% of persons with hearing loss still do not wear hearing aids. Pure-tone audiometry is the traditional gold standard in assessment and screening of hearing impairment, but it requires the use of calibrated devices and soundproof booth. The antiphasic digits-in-noise (DIN) test does not require calibrated material and can run on a standa...
Article
Full-text available
Globally, more than 1.5 billion people have hearing loss. Unfortunately, most people with hearing loss reside in low- and middle-income countries (LMICs) where traditional face-to-face services rendered by trained health professionals are few and unequally dispersed. The COVID-19 pandemic has further hampered the effectiveness of traditional servic...
Article
Objective The aim of this study was to examine experiences of hearing health care services as described in online consumer reviews. Design This study used a cross-sectional design. Online consumer reviews about hearing health care services generated from Google.com to an open-ended question “Share details of your own experience at this place” and...
Article
Purpose Online reviews have been used by hearing aid owners to share their experiences and to provide suggestions to potential hearing aid buyers, although they have not been systematically examined. The study was aimed at examining the hearing aid consumer reviews using automated linguistic analysis, and how the linguistic variables relate to self...
Article
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 o...
Article
Full-text available
Background: Hearing loss affects one in five people worldwide and is estimated to affect one in four by 2050. Treatment relies on accurate diagnosis of hearing loss, but this first step is out of reach for more than 80% of those affected. Increasingly automated approaches are being developed for self-administered digital hearing assessment without...
Preprint
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...
Article
Full-text available
Speech-in-noise tests use fixed signal-to-noise ratio (SNR) procedures to measure the percentage of correctly recognized speech items at a fixed SNR or use adaptive procedures to measure the SNR corresponding to 50% correct (i.e., the speech recognition threshold, SRT). A direct comparison of these measures is not possible yet. The aim of the prese...
Article
Purpose The study examined psychologically meaningful language dimensions (i.e., social and emotional dimensions, health dimensions, and personal concerns) within online consumer reviews on hearing health care services using an automated textual analysis approach. Method Nine thousand six hundred twenty-two consumer reviews of hearing health care...
Article
Objective The aim of the study was to examine the mental well-being of audiologists in the midst of the COVID-19 pandemic. Design A cross-sectional online survey was conducted during the COVID-19 pandemic, between 23 June and 13 August 2020. A self-report survey included screening measures for psychological distress (PHQ-4: anxiety and depression)...
Preprint
Full-text available
Hearing loss affects one in five people worldwide and is estimated to affect one in four by 2050. Treatment relies on accurate diagnosis of hearing loss, but this first step is out of reach for more than 80% of those affected. Increasingly automated digital approaches are being developed for self-administered hearing assessment without professional...
Article
Full-text available
Background: Childhood hearing loss is a global epidemic most prevalent in low- and middle-income countries where hearing healthcare services are often inaccessible. Referrals for primary care services to central hospitals add to growing lists and delays the time-sensitive treatment of childhood hearing loss. Aim: To compare a centralised tertiary...
Article
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...
Article
Objective To explore the publicised opinions of consumers actively participating in online hearing aid reviews. Design A retrospective design examining data generated from an online consumer review website (www.HearingTracker.com). Qualitative data (open text responses) were analysed using the open source automated topic modelling software IRaMuTe...
Article
Full-text available
Purpose This study aimed to describe and compare the performance of two screening protocols used for preschool hearing screening in resource-constrained settings. Method Secondary data analysis was done to determine the performance of two protocols implemented during a preschool hearing screening program using mobile health technology in South Afr...
Article
Background: Digits-in-noise (DIN) tests have become popular for hearing screening over the past 15 years. Several recent studies have highlighted the potential utility of DIN as a school-aged hearing test. However, age may influence test performance in children due to maturation. In addition, a new antiphasic stimulus paradigm has been introduced,...
Preprint
Full-text available
Hearing aid acquisition and ownership: What can we learn from online consumer reviews?
Article
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 cond...
Article
Objectives Children with limited hearing unilaterally might experience more listening effort than children with normal hearing, yet previous studies have not confirmed this. This study compared listening effort in school-age children with normal hearing and children with limited hearing unilaterally using behavioral and subjective listening effort...
Article
Full-text available
Age-appropriate early childhood development is greatly influenced by exposure to various mediating and moderating factors. Developmental outcomes cannot be viewed in isolation, but by considering the interaction of the various risks and protective factors that influence early child development. A non-experimental, cross-sectional research design wa...
Article
Full-text available
Objective To describe the developmental risks, and its influence, in young children from a low-income South African community. Method An exploratory, cross-sectional research study design was employed. Developmental screening was conducted during home visits with 126 caregivers and children between 0 and 42 months of age from a low-income South Af...
Article
Remote communication in ENT has been expanding, spurred by the COVID‐19 pandemic. Conferences and teaching have moved online, enabling easier participation, and reducing financial and environmental costs. Online multi‐disciplinary meetings have recently been instigated in Africa to discuss management of cases in head and neck cancer, or cochlear im...
Article
Purpose To investigate outcome measurement tools for the validation of teleaudiology hearing aid rehabilitation services for adults. Methods A search strategy was developed to identify tools used to evaluate standard and teleaudiology hearing aid rehabilitation services for adults. A seven-domain hearing-health-care service model for validation wa...
Article
Objectives: More than a billion adolescents and youngsters are estimated to be at risk of acquiring recreational noise-induced hearing loss (RNIHL) due to the unsafe use of personal audio systems. RNIHL is preventable; therefore, the present study aimed to determine (i) the accuracy and reliability of dbTrack (Westone) sound-level monitoring earph...
Article
Full-text available
Music education has been demonstrated to positively influence the development of early literacy with the type of intervention identified as a moderating factor. However, research comparing the effects of different music education approaches on phonological awareness and early literacy is limited. This systematic review aimed to compare the effect o...
Preprint
Remote communication in ENT has been expanding, spurred by the COVID-19 pandemic. Conferences and teaching have moved online, enabling easier participation, and reducing financial and environmental costs. Online multi-disciplinary meetings have recently been instigated in Africa to discuss management of cases in head and neck cancer, or cochlear im...
Poster
Full-text available
OBJECTIVES: The COVID-19 pandemic has highlighted the need for remote, but valid and reliable hearing tests. Previous studies have performed testing remotely but, to our knowledge, have not directly compared results in the same listeners with standard, rigorous lab or clinic testing. DIN is an objective, fast, and reliable speech-in-noise test that...
Article
Full-text available
The global digital transformation enables computational audiology for advanced clinical applications that can reduce the global burden of hearing loss. In this article, we describe emerging hearing-related artificial intelligence applications and argue for their potential to improve access, precision, and efficiency of hearing health care services....
Article
Full-text available
Early childhood development (ECD) practitioners from low-resource communities may find it challenging to provide developmentally appropriate services to support child development, due to the increased risk of developmental delays. Practitioners rely on their ECD knowledge when delivering ECD services, but many practitioners in South Africa are unde...
Article
Full-text available
Technology options for children with limited hearing unilaterally that improve the signal-to-noise ratio are expected to improve speech recognition and also reduce listening effort in challenging listening situations, although previous studies have not confirmed this. Employing behavioral and subjective indices of listening effort, this study aimed...
Article
Full-text available
Purpose Phonological awareness (PA) requires the complex integration of language, speech, and auditory processing abilities. Enhanced pitch and rhythm discrimination have been shown to improve PA and speech-in-noise (SiN) discrimination. The screening of pitch and rhythm discrimination, if nonlinguistic correlates of these abilities, could contribu...
Article
Full-text available
Objective Hearing loss (HL) affects the everyday functioning of millions of people worldwide. The Brief International Classification of Functioning Disability and Health (ICF) core sets for HL was developed to meet the complex health care needs of adults with HL. Because the brief core set for HL has not yet been validated internationally, this stu...
Article
Children are often only identified with a developmental delay when they enter primary school due to developmental delays hindering academic progress. Detection of at-risk children in low-income communities is typically unavailable due to several challenges. This study validated an mHealth-based developmental screening tool as a potential time-and c...
Article
Introduction Inadequate caregiving conditions interfere with successful health and development outcomes. Access to appropriate information can result in improved health and development outcomes in children. Health promotion text messaging, a primary mHealth strategy, has been implemented in various countries to reach communities where the majority...
Article
Full-text available
The COVID response has put pressure on hearing services to redesign their service offerings, adopt innovative tele-audiology approaches, and be flexible in providing a blended service of care that meets the needs of each individual.
Article
Objectives To compare outcomes of a community-based hearing screening programme using smartphone screening audiometry operated by specialist (School Health Nurses – SHNs) and non-specialist health workers (Community Health Workers – CHWs) in school children. Design This study used a two-group comparison of screening outcomes as conducted by SHNs a...
Article
Objective: The Audiology Department at the Royal Surrey County Hospital usually offers face-to-face audiologist-delivered cognitive behavioural therapy (CBT) for tinnitus rehabilitation. During COVID-19 lockdown, patients were offered telehealth CBT via video using a web-based platform. This study evaluated the proportion of patients who took up t...
Article
Full-text available
Purpose The aim of this study was to determine the effect of self-perceived digital proficiency on the uptake of hearing services through a hybrid online and face-to-face hearing health care model. Method Adults were recruited via online methods to complete an online hearing screening test within the greater Durban area in South Africa. On submiss...
Article
Full-text available
Objective: To evaluate and compare the effectiveness and quality of standard face-to-face and teleaudiology hearing aid fitting follow-up consultations and blended services for adult hearing aid users. Design and study sample: Fifty-six participants were randomly allocated to two equal groups, with equal numbers of new and experienced users. One...