Association of Hearing Aids and Cochlear Implants With Cognitive Decline and Dementia: A Systematic Review and Meta-analysis
JAMA Neurology
Yeo, B. S. Y., Song, H. J. J. M. D., et al. (2023).
JAMA Neurology, 80(2), 134-141.
This systematic review and meta-analysis investigates the effects of hearing aids and cochlear implants on cognitive decline.
National University of Singapore
From database inception to July 23, 2021
Randomized-clinical trials or observational studies published as full-length articles in peer-reviewed journals
31 studies included in the systematic review; 19 studies included in the meta-analysis
<div>Meta-analysis revealed significantly lower hazards of cognitive decline for hearing-aid users (HR=0.81, CI [0.76-0.87]) as compared to non-hearing-aid users, for both normal cognition and those with mild cognitive impairment. A pooled analysis revealed a 3% improvement in scores on short-term cognitive tests after use of cochlear implants or hearing-aids (ROM=1.03, CI [1.02-1.04]). Findings from the systematic review were mixed, but most supported the findings from the meta-analysis.</div>
