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Πέμπτη 11 Νοεμβρίου 2021

Prevalence of Single‐Sided Deafness in the United States

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Objectives/Hypothesis

The aim of this study was to obtain a reliable estimate of single-sided deafness (SSD) prevalence in the adult U.S. population.

Methods

A cross-sectional national epidemiologic study was performed. Participants were included from the National Health and Nutrition Examination Survey (NHANES). Each cohort includes a nationally representative sample of approximately 5,000 noninstitutionalized civilians. Subjects 20 years old and over with audiometric testing were included. SSD was defined as normal hearing (pure-tone average [PTA] of ≤25 dB) in one ear and severe or worse hearing (PTA > 70 dB) in the other, using both three- and four-frequency PTA definition. Prevalence was measured as a raw number (n) and percentage (%) of the sample. Weighted estimates of prevalence were calculated based on the 2019 U.S. population census.

Results

An estimated 345,064 Americans (estimated prevalence of 0.14%, 95% confidence interval = 0.08–0.24) had SSD. SSD was more prevalent in individuals 60 to 79 years of age (estimated 155,917 U.S. adults, prevalence of 0.25%). A higher prevalence of SSD was noted among women compared to men (215,430 U.S. adult women, prevalence of 0.17% vs. 131,726 U.S. adult men, prevalence of 0.11%). Using a three-frequency PTA definition resulted in an estimated prevalence of 0.11%. Finally, 27% of adults with SSD reported having "good" or "excellent" hearing despite their hearing loss.

Conclusions

The prevalence of SSD in the United States is estimated at 0.11%–0.14% (271,122 to 345,064 adults), depending on PTA definition used. These individuals could potentially benefit from auditory rehabilitation, including cochlear implantation.

Level of Evidence

2 Laryngoscope, 2021

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