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Effect of Digital Hearing Screening on Early Detection of Hearing Impairment among Young Adults in Nigeria

Abstract

Hearing impairment is an important public health concern that may affect communication, social interaction, educational achievement, employment opportunities, and quality of life among young adults. Hearing difficulties may arise from prolonged exposure to loud music and occupational noise, ear infections, congenital conditions, ototoxic medications, trauma, and other health conditions. Young adults may remain unaware of gradual or mild hearing impairment because they may not recognize early symptoms or perceive themselves as being at risk. Limited access to routine hearing assessment, low awareness of hearing health, cost, and inconvenience associated with visiting specialized facilities may further contribute to delayed detection. Digital hearing screening provides an emerging approach for conducting preliminary hearing assessments through smartphones, computers, or other digital devices and may improve access to hearing screening among young adults. Against this background, this study investigates the effect of digital hearing screening on early detection of hearing impairment among young adults in Nigeria. The study will be anchored on the Technology Acceptance Model, Health Belief Model, and Health Systems Framework. The Technology Acceptance Model explains how perceived usefulness, perceived ease of use, convenience, trust, and perceived reliability of digital hearing screening may influence young adults' willingness to use the technology. The Health Belief Model explains how perceived susceptibility to hearing impairment, perceived severity, perceived benefits of screening, perceived barriers, and cues to action may influence participation in hearing screening. The Health Systems Framework emphasizes service delivery, healthcare workforce, health information, medical technologies, accessibility, referral systems, and continuity of care as essential components of effective hearing-health services. Collectively, these theoretical perspectives provide a suitable framework for explaining how digital hearing screening may influence early detection of hearing impairment among young adults in Nigeria. The study will adopt a quantitative quasi-experimental or analytical cross-sectional research design. The study population will comprise young adults aged 18–35 years residing in selected urban, semi-urban, and rural communities across Nigeria. A multistage sampling technique will be used to select geopolitical zones, states, local government areas, communities, screening locations, and eligible participants. Digital hearing screening will be assessed using indicators such as availability of digital hearing-screening platforms, frequency of screening, completion of hearing tests, ease of use, screening duration, accessibility, test instructions, device type, headphone or earphone use, result reporting, and recommendations for professional hearing assessment. Early detection of hearing impairment will be assessed using indicators such as abnormal digital hearing-screening results, suspected hearing impairment, hearing thresholds where measurable, newly identified hearing difficulties, referral for audiological assessment, attendance at professional hearing evaluation, and confirmed hearing impairment following appropriate diagnostic assessment. Data will be collected using structured questionnaires, digital hearing-screening records where available and appropriately consented, hearing screening forms, referral registers, audiological assessment reports, and relevant community health programme documents. Descriptive statistics will be used to summarize participants' characteristics, hearing-risk exposures, digital screening participation, and screening findings. Inferential statistical techniques, including chi-square tests, t-tests, correlation analysis, and logistic or multiple regression analysis where appropriate, will be used to determine the effect of digital hearing screening on early detection of hearing impairment. Where a quasi-experimental design is adopted, detection rates before and after implementation of digital hearing screening may be compared with those of a comparison group to determine changes associated with the intervention. Diagnostic performance measures such as sensitivity, specificity, positive predictive value, and negative predictive value may also be calculated where an appropriate clinical reference standard is available. Diagnostic tests will further be conducted to assess the reliability, validity, and robustness of the findings. The study is expected to find that digital hearing screening has a significant positive effect on early detection of hearing impairment among young adults in Nigeria. Young adults exposed to accessible digital hearing screening are expected to have a greater likelihood of previously undetected hearing difficulties being identified than those without comparable access to screening. The convenience and accessibility of digital screening may encourage young adults who would not ordinarily visit an audiology or ear, nose, and throat facility to undergo preliminary hearing assessment. Early identification of abnormal screening results may facilitate timely referral for comprehensive audiological evaluation, medical assessment, treatment, hearing rehabilitation, and appropriate hearing-support services. Digital screening may also increase awareness of hearing health and encourage young adults to adopt preventive behaviours, particularly among those exposed to loud music, recreational noise, or occupational noise. However, differences in device quality, headphone calibration, environmental noise, testing conditions, digital literacy, inaccurate self-administration, limited access to professional audiological services, and misunderstanding of screening results may affect effectiveness. Digital hearing screening should therefore be regarded as a preliminary screening approach and not a replacement for comprehensive professional audiological assessment. The study expects appropriately validated, accessible, user-friendly, and professionally supported digital hearing screening to contribute significantly to improved early detection of hearing impairment among young adults in Nigeria. The study is expected to contribute to the literature on digital hearing screening, hearing impairment detection, mobile health technology, audiological screening, young adult health, hearing-health promotion, preventive healthcare, and public health in Nigeria. The findings will provide useful information to the Federal Ministry of Health and Social Welfare, Federal Ministry of Education, National Primary Health Care Development Agency, hospitals, primary healthcare centres, audiology and otolaryngology services, healthcare professionals, digital health developers, technology providers, development partners, and policymakers regarding the potential role of digital technologies in improving access to hearing-health services. The study will also provide evidence-based recommendations for integrating validated digital hearing-screening tools into community and youth health programmes, strengthening referral pathways for individuals with abnormal screening results, training healthcare workers to support digital hearing screening, improving public awareness of hearing health, and ensuring that digital screening technologies are appropriately validated and used alongside professional audiological assessment across Nigeria.

Keywords: Digital hearing screening, hearing impairment, early detection, young adults, audiological screening, digital health, mobile health technology, hearing health, preventive healthcare, Nigeria, public health.