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A Review of Past Research on Changes in Hearing Aid Benefit over Time
Journal article   Open access   Peer reviewed

A Review of Past Research on Changes in Hearing Aid Benefit over Time

Christopher Turner, Larry Humes, Ruth Bentler and Robyn Cox
Ear and hearing, Vol.17(3 Sup 1), pp.14S-28S
06/1996
DOI: 10.1097/00003446-199617031-00003
PMID: 8807271
url
https://doi.org/10.1097/00003446-199617031-00003View
Published (Version of record) Open Access

Abstract

Hearing aid benefit refers to a relative change in performance on a particular measure between aided and unaided listening conditions. A number of studies in recent years have investigated the hypothesis that hearing aid benefit increases over time after the initial fitting of the aid. Both objective (speech recognition) and subjective (questionnaire) measures have been used to measure hearing aid benefit. Some studies have reported a positive increase over time in group mean benefit, and some have reported no change in benefit, whereas none have reported a group mean negative change in benefit. However, individual subjects in these studies can show changes in benefit in either a positive or negative direction. The variability across subjects in each study has been large in comparison with the observed amount of benefit increase. In this review of the literature, it is argued that the studies present essentially similar results and the range of values across subjects in the various studies shows considerable overlap. Although there does appear to be a tendency for hearing aid benefit to increase over time, there are other, much stronger, factors influencing changes in hearing aid benefit that make it impossible at present to predict which patients will show a reliable increase (or decrease) in hearing aid benefit over time.(Ear & Hearing 1996;17;14S-28S)

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