A new extension to the University of Erlangen Smell Test (UEST).

The first tier of the test battery is an olfactory screening test consisting of a 12-odor identification test. This test discriminates anosmia from hyposmia and normosmia. As a second tier, the Threshold–Discrimination–Identification Test offers a more extensive analysis of olfactory deficits (TDI score, Sniffin’ Sticks). A growing pool of normative data (Kobal et al., 2000) is now available and functional anosmia is defined as a deficit with a TDI score <15 (out of 48).