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Semin Hear. 2019 Feb;40(1):26-36. doi: 10.1055/s-0038-1676781. Epub 2019 Feb 5.

Pilot Comparison of Adjustment Protocols of Personal Sound Amplification Products.

Author information

1
Department of Otolaryngology, Johns Hopkins University School of Medicine, Baltimore, Maryland.
2
Center on Aging and Health, Johns Hopkins University, Baltimore, Maryland.
3
Department of Audiology, Speech-Language Pathology and Deaf Studies, Towson University, Towson, Maryland.

Abstract

The Over-the-Counter Hearing Aid Act of 2017 was signed into law in August 2017 and facilitates the introduction of direct-to-consumer sales of hearing aids for adults with mild-to-moderate hearing loss. Among many questions surrounding over-the-counter sales is the ability of users to self-fit amplification. Many studies have conducted self-fitting procedures using guidance materials provided by audiologists. In this pilot, we explore the ability of users to self-adjust personal sound amplification devices using only materials provided by the manufacturer and contrast this with models that involve a hearing professional. Outcomes to assess adjustments included clinic-based speech-in-noise measures and ability to approximate NAL-NL2 prescriptive targets. We found that an audiologist-driven model provided the best outcomes. However, it is unknown if the difference is clinically meaningful.

KEYWORDS:

Personal Sound Amplification Product; direct-to-consumer sales; over-the-counter device; self-fit amplification

PMID:
30728647
PMCID:
PMC6363538
[Available on 2020-02-01]
DOI:
10.1055/s-0038-1676781

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