Prevalence of Smell Impairment in Clinical Testing

Chart created by the NIDCD Epidemiology and Biostatistics Program.

Source: Based on the San Diego Odor Identification Test conducted in the Epidemiology of Hearing Loss Study, a population-based study of sensory loss and aging in older adults in Beaver Dam, WI.

Reference

Murphy C, Schubert CR, Cruickshanks KJ, Klein BEK, Klein R, Nondahl DM. Prevalence of olfactory impairment in older adults. (abstract) JAMA. 2002 Nov 13;288(18):2307–12.