Among 2,049 Black and White adults aged 70–79 in the Health, Aging, and Body Composition Study, objective hearing loss without hearing aid use was associated with a 0.19 SD increase in depressive symptoms (95% CI: 0.07–0.31) and 38% higher odds of infrequent friend contact (OR=1.38; 95% CI: 1.07–1.78) across six annual follow-up waves. Critically, those using hearing aids showed no significant association with either outcome — suggesting the device itself may buffer psychosocial harm rather than the hearing loss diagnosis alone.
This finding lands squarely within a growing body of evidence linking sensory impairment to accelerated cognitive and emotional decline in aging populations. The ACHIEVE trial (2023) demonstrated that hearing intervention slowed cognitive decline in high-risk adults, and this dataset adds a complementary psychosocial dimension: friendship network erosion may be a key mediating pathway connecting untreated hearing loss to depression. The hearing-aid protective signal is particularly compelling from a public health standpoint, given that hearing aids remain underutilized — worn by fewer than 20% of eligible older Americans.
Limitations are meaningful: the observational design precludes causal inference, and self-reported hearing loss showed weaker, less consistent associations than audiometric measurement, flagging potential misclassification. The cohort's age range (70–79) limits generalizability to the oldest-old. As a preprint not yet peer-reviewed, these findings should be interpreted cautiously pending independent validation. Still, the pattern is clinically actionable and reinforces the case for routine audiometric screening and hearing aid access in primary geriatric care.
