Structured Support Strengthens Over-the-Counter Hearing Aid Benefit in Older Adults
Over-the-counter hearing aids can widen access to hearing care, but this trial shows access alone is not enough. In older adults with untreated bilateral hearing loss, structured support turned a consumer-directed device strategy into a more effective clinical intervention than self-fitting alone.
The multicenter, three-arm pragmatic randomized controlled trial enrolled 322 adults aged 50 years or older across ten community health centers in three Chinese cities. Participants were assigned in equal proportions to self-fitting, primary care physician support, or remote audiologist support. Outcome assessors and statisticians were masked, a design choice that strengthens confidence in the measured differences even in a real-world setting.
The primary endpoint was hearing aid benefit at 3 months, measured with the Abbreviated Profile of Hearing Aid Benefit. Both supported pathways outperformed self-fitting. Adjusted mean differences favored remote audiologist support by 12.20 points, with a 95% confidence interval of 7.18 to 17.22, and primary care physician support by 9.71 points, with a 95% confidence interval of 4.74 to 14.67.
Those are not modest shifts in a niche questionnaire. They reflect a clinically meaningful gap between simply handing over technology and helping older adults use it well.
Better Fitting, Better Daily Use
The benefit signal extended beyond the primary hearing-aid score. Hearing-related quality of life, satisfaction, speech recognition, and device use all favored the supported models. The pattern mattered because hearing aid effectiveness is rarely defined by one metric alone; a device can be technically adequate and still fail if the wearer cannot adjust it comfortably, tolerate the amplification, or integrate it into daily communication.
Support likely helped in several ways. For older adults, hearing loss often coexists with reduced dexterity, lower digital confidence, and difficulty judging whether amplification is set appropriately. Self-fitting can leave those barriers untouched. In contrast, physician support and remote audiologist support both added an interpretive layer: someone reviewed performance, refined the setup, and reduced the burden of trial and error.
The trial did not treat support as an abstract service. It tested two concrete pathways that are increasingly relevant to routine care: a primary care model and a remotely delivered audiology model. Both improved outcomes, suggesting that the clinical value of over-the-counter hearing aids depends heavily on the infrastructure wrapped around the device.
Durability Through 12 Months
The separation between groups did not disappear after the initial fitting period. Differences persisted at 12 months, extending the early advantage of supported care into longer-term follow-up. In hearing rehabilitation, durability matters as much as initial adoption, because early frustration commonly leads to abandoned devices and lost benefit.
This longer horizon is important for health systems and patients alike. A one-time purchase can look inexpensive at the counter, yet the value of the device depends on sustained use and functional gain. The trial’s repeated follow-up suggests that structured assistance can convert a purchase into ongoing rehabilitation rather than a brief experiment.
One participant in the self-fitting group died of stroke. No intervention-related serious adverse events occurred.
Cost Per Quality-Adjusted Life-Year Stayed Low
Economic data in the trial add another layer to the clinical picture. At 12 months, incremental costs per quality-adjusted life-year gained were $167.16 for physician support and $361.17 for remote support. Those figures point to a low-cost intervention in both supported arms, with physician support carrying the smaller incremental cost in this analysis.
The cost findings matter because hearing care often fails at the point where affordability meets follow-through. Over-the-counter devices were introduced to lower access barriers, but the trial shows that low-cost support can also be layered on without erasing the economic advantage. For health systems deciding how to deploy hearing care at scale, the comparison is no longer only device versus no device. It is also supported care versus unsupported self-management.
The remote model may be particularly attractive where audiology staffing is thin, while physician support may fit community health centers already serving older adults for chronic disease management. Both models improved benefit, but they do not ask the same operational questions of the system.
What This Trial Means for Hearing Care Delivery
This study places implementation details at the center of hearing rehabilitation. Older adults with untreated bilateral hearing loss can use over-the-counter hearing aids, but they appear to do better when fitting is not left entirely to self-directed adjustment. The findings argue for a stepped model in which consumer access is paired with structured clinical guidance.
The trial also expands the discussion beyond specialty clinics. Conducted in ten community health centers in Jinan, Guangzhou, and Ürümqi, it tested a pragmatic pathway that could be adapted to primary care and tele-audiology settings. That is where many patients first present, and where hearing loss often competes with more immediate chronic disease concerns.
The core message is practical: hearing aids work better when people are not left alone with the device. Support improved the primary hearing benefit, and it improved the outcomes that matter at bedside level—quality of life, satisfaction, speech recognition, and actual use.
What remains unresolved is how best to scale that support across different health systems, language settings, and digital environments. The trial establishes the direction of effect, but real-world delivery will still depend on staffing, reimbursement, and whether patients can reliably access the fitting pathway they are offered.