Auditory Acclimatization in New Adult Hearing Aid Users: A Registered Systematic Review of Magnitude, Key Variables, and Clinical Relevance
Abstract
PURPOSE
Auditory acclimatization refers to changes in auditory performance over time due to hearing aid modifications, extending beyond task-specific or training effects. This preregistered systematic review expands on previous ones by examining a broader range of outcomes, including auditory (e.g., speech recognition, electrophysiological responses) and selected nonauditory (e.g., self-reported outcomes) measures. It aimed to assess acclimatization's presence, magnitude, and influencing factors, focusing on controlled trials comparing postfitting aided outcomes with a control group. This is the first review to comprehensively report self-reported outcomes, advancing the field.
METHOD
A systematic literature search was conducted in CINAHL, PubMed, and Web of Science in March 2024. Eligible studies followed the Population, Intervention, Comparison, Outcome, Study Design, and Timeline framework, including new adult hearing aid users with sensorineural hearing loss using air-conduction hearing aids. Studies were required to report outcomes, with a comparator and at least two data points in the same condition. Exclusions applied to studies involving children, advanced feature devices, surgical implants, non-peer-reviewed work, or uncontrolled studies. The review followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and was registered on PROSPERO. A planned meta-analysis was excluded due to missing data.
RESULTS
The review included 25 controlled…
How strong is the evidence?
Evidence Hub reads this as a systematic review, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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