Prevalence of Olfactory Impairment in Older Adults

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Abstract
The prevalence of taste and smell disorders in the United States is unknown. More than 200 000 visits are made to physicians each year for chemosensory complaints,1 yet most chemosensory problems may be undetected. The prevalence of chronic olfactory problems from the National Health Interview Survey (NHIS) was estimated at 1.42%, or 2.7 million Americans. In the age groups of 55 to 64 years, 65 to 74 years, and 75 years or older, the prevalence rates were 1.99%, 2.65%, and 4.60%, respectively.2 A National Geographic survey in 1986 estimated prevalence among its readership of 0.8%.3 These data are informative but are based on self-report and may substantially underestimate prevalence.