A Morbidity and Mortality Weekly Report recently released by the Centers for Disease Control and Prevention shows nearly one in four adults aged 20 to 69 has audiometric notches, indicating a high prevalence of noise-induced hearing loss.
The CDC analyzed the most recent available data from the 2011-2012 National Health and Nutrition Examination Survey to determine the presence of audiometric notches among the U.S. adult population. The prevalence of both unilateral and bilateral notches was consistently higher in men than women for both reported work exposure to noise and no reported work exposure to noise. The presence of noise-induced hearing loss increased from one in five among young adults aged 20 to 29 to one in four among adults aged 50 to 59. Close to 24 percent of people who self-reported excellent or good hearing regardless of noise exposure reported had bilateral or unilateral notches, indicating that this is a significant but often unrecognized problem.
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