Exploring factors influencing the hearing test and hearing aid adoption among Japanese older adults: Implications of recognizing the hearing loss–dementia relationship

Objective

The hearing aid adoption rate among older adults in Japan is lower than that in other developed countries. Herein, a survey was conducted to identify this bottleneck and develop countermeasures. This study aimed to examine whether raising awareness of the relationship between hearing loss and dementia is significant for hearing tests and adopting hearing aids.

Methods

A questionnaire was administered to participants aged 65 or older who visited a general hospital to determine the background factors (1) for a recent history of hearing tests, (2) for the desire to visit an otolaryngologist and have a hearing test, (3) for recognizing the hearing loss–dementia relationship, and (4) for adopting hearing aids.

Results

A total of 517 patients (mean age, 78.06; SD 6.97), representing 2.4% of the region's older-adult population, participated in the survey. A history of hearing tests within five years was significantly associated with recognizing the hearing loss–dementia relationship (adjusted OR 2.36, 95% CI 1.49–3.72). The desire to visit an otolaryngologist or have a hearing test was significantly associated with recognizing the hearing loss–dementia relationship (adjusted OR 1.70, 95% CI 1.02–2.85). Moreover, 39.3% were aware of the hearing loss–dementia relationship. The significant associated factors were being female (OR 2.50, 95% CI 1.64–3.81) and having interpersonal hobbies (OR 1.66, 95% CI 1.11–2.49). The significant background factors for adopting hearing aids were older age (OR 6.95, 95% CI 1.90–25.40), self-reported severe hearing impairment (OR 5.49, 95% CI 2.55–11.80), and living alone (OR 2.63, 95% CI 1.18–5.89). Recognizing the hearing loss–dementia relationship was not a significant factor.

Conclusion

Raising awareness of the hearing loss–dementia relationship was not associated with adopting hearing aids for self-reported hearing impairments. However, it may be associated with otolaryngology visits and hearing tests. Thus, steps like hearing screening for older adults are also essential.