Dear List, I am trying to find data on the prevalence of single-sided deafness (SSD) in the general population (one severely-to-profoundly deaf and one normal/mild-to-moderately impaired ear). I find the statistic stated over and over again, without reference, that there are 60,000 new cases per year in the U.S. Multiplied by a 70-year lifespan, this would suggest 4 million individuals, or about 1% of the U.S. population, which seems high. The NIDCD website lists 4,000 cases/year for sudden sensorineural hearing loss, which overlaps with but does not equal the SSD population. Does anyone know where these numbers (4,000 or 60,000) come from, or know of a good reference for SSD prevalence data? The best I can find are studies on children that include less severe losses for the impaired ear. Thank you, Josh ________________________________ Joshua G.W. Bernstein, Ph.D. Research Audiologist Audiology & Speech Center Walter Reed National Military Medical Center 8901 Wisconsin Ave. Bethesda, MD 20889 (301) 319-7040 NEW email: joshua.g.bernstein.civ@xxxxxxxxxx ________________________________
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