Evidence map›Paper›PMID 41508350›Full record

ArticleOtology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology2026

Marketing Practices and Information Quality for Over-the-counter (OTC) Hearing Aids on Amazon.com.

Kylie Conway, Megan Knoetze, De Wet Swanepoel, Anu Sharma, Ashley Nassiri, Vinaya Manchaiah

Abstract read
In one paragraph

Article in Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Kylie ConwayDepartment of Otolaryngology, University of Colorado School of Medicine, Aurora, CO.ORCID 0009-0006-5054-8578
Megan KnoetzeVirtual Hearing Lab, a Collaborative initiative between the University of Colorado School of Medicine, Aurora, Colorado, and the University of Pretoria, Pretoria, South Africa.
De Wet SwanepoelDepartment of Otolaryngology, University of Colorado School of Medicine, Aurora, CO.
Anu SharmaDepartment of Speech, Language, and Hearing Sciences, University of Colorado Boulder, Boulder, CO.
Ashley NassiriDepartment of Otolaryngology, University of Colorado School of Medicine, Aurora, CO.
Vinaya ManchaiahDepartment of Otolaryngology, University of Colorado School of Medicine, Aurora, CO.

Funding

Emerging Service Delivery Models for Over-the-Counter Hearing Aids: A Hybrid Effectiveness-Implementation TrialR01DC021653 · NIDCD · UNIVERSITY OF COLORADO DENVER · PI Vinaya Manchaiah, ANU SHARMA · 2024 to 2026
$1.9M
NIDCD NIH HHS R01 DC021653
6 · The paper itself

Abstract

introductionOver-the-counter (OTC) hearing aids have become increasingly accessible, yet limited information exists regarding their online listings and marketing practices. This study evaluated cost, satisfaction ratings, review, volume, readability of product descriptions, and Food and Drug Administration (FDA) clearance status of OTC hearing aid listings on Amazon.com. MATERIALS AND

methodsThis cross-sectional, descriptive study analyzed 138 Amazon OTC hearing aid listings. Listing characteristics were extracted, and FDA clearance or registration was verified. Analyses included descriptive data on listing characteristics and nonparametric analysis of key variables: price, FDA-clearance status, device type, and form factor. Readability indices were used to assess the accessibility of product descriptions.

resultsOf the 138 listings analyzed, 92 listings (66.7%) identified their product as "OTC hearing aids," while only 37 (26.8%) were verified as FDA-cleared or registered. FDA-cleared/registered devices cost significantly more than non-FDA-cleared devices. Behind-the-ear (BTE) devices had a significantly higher number of reviews compared with in-the-ear (ITE) devices. The readability of product descriptions was advanced, ranging from 11th-grade to college graduate levels. In addition, 52 listings (37.7%) lacked specific marketing for mild-to-moderate hearing loss, and 13 (9.4%) were marketed to those with hearing loss beyond mild-to-moderate. DISCUSSION: Amazon listings for OTC hearing aids reveal significant inconsistencies in marketing and labeling, including misleading FDA clearance claims and inadequate accessibility of product information. Advanced readability levels and marketing for hearing loss degrees beyond mild-to-moderate further impede consumers' ability to make informed purchasing decisions. These findings highlight the urgent need for stricter regulatory oversight and improved dissemination of accurate, accessible consumer information.

Indexed as

Hearing AidsMarketingNonprescription DrugsCross-Sectional StudiesHumansUnited StatesUnited States Food and Drug AdministrationNonprescription DrugsHearing lossMarketing and labelingOnline health informationOTC hearing aids

Identifiers

PMID41508350
PMCPMC12947307

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.