A protocol for the Hearing impairment in Adults: A Longitudinal Outcomes Study (HALOS)

Area of Science:

• Audiology and Public Health
• Gerontology
• Health Services Research

Background:

• Hearing loss is a prevalent chronic condition impacting multiple life domains.
• Adult-onset hearing loss affects communication, cognition, and economic independence.
• Hearing impairment is the third leading cause of disability globally.

Purpose of the Study:

• To evaluate the impact of hearing devices (hearing aids, cochlear implants) on adult hearing loss.
• To compare long-term outcomes and intervention timing between hearing aid and cochlear implant users.
• To determine the cost-effectiveness of early intervention for adult-onset hearing loss.

Main Methods:

• A mixed-methods study involving 908 participants aged 40+ in Australia.
• Quantitative data collected via online surveys at baseline, 24, and 48 months.
• Qualitative data from semi-structured interviews exploring patient experiences with Australian hearing services.

Main Results:

• Data collection ongoing; results pending.
• Analysis will focus on audiological, health, psychosocial, functional, and employment outcomes.
• Study aims to provide evidence for optimizing hearing healthcare interventions.

Conclusions:

• Findings will inform public health policy and clinical practice for adult hearing loss.
• This research will highlight the benefits of timely hearing device use.
• The study will contribute to understanding the patient journey in hearing rehabilitation.