WhatsApp AI Support vs Paper Support for First-Time Hearing Aid Users

The purpose of this study is to advance hearing care in low- and middle-income countries (LMICs) through the rigorous evaluation and optimization of innovative interventions and technologies. This study encompasses the following key aim: This study aims to evaluate the effectiveness of a WhatsApp-delivered AI-enabled support and acclimatization programme for adults receiving preset hearing aids in low-resource community settings. The AI-enabled programme combines two complementary components delivered through the same WhatsApp channel: (i) a structured push programme of 16 voice notes and images delivered over four weeks, and (ii) an on-demand artificial-intelligence (AI) conversational support agent available throughout the four-week intervention period. The primary objective is to determine whether this WhatsApp-delivered AI-enabled programme results in superior hearing aid self-efficacy compared to receiving the equivalent core information in a paper-based pamphlet at the time of fitting. By comparing hearing aid self-efficacy, hearing aid outcomes, and user engagement between the intervention (WhatsApp AI-enabled) and control (paper-based) groups, this study seeks to establish whether AI-enabled digital delivery provides superior support and leads to better self-efficacy for first-time hearing aid users compared to traditional paper-based methods.

Inclusion Criteria: * 18 years and older * Confirmed mild to severe (20 to \< 80 dB PTA in both ears) hearing loss (determined during baseline assessments) * Willing/available to commit to 5-week follow-up * Must have access to their own personal WhatsApp * Functional proficiency in English, isiXhosa, or Sepedi sufficient to provide informed consent and to self-complete the study outcome measures in one of these three languages, as judged by the recruiting CHW during the screening conversation. Exclusion Criteria: * Younger than 18 years * Hearing loss too severe (≥80 dB HL PTA) * Normal hearing (\