Odorant confusion matrix: the influence of patient history on patterns of odorant identification and misidentification in hyposmia.

摘要: The odorant confusion matrix (OCM) is an identification test in which the number of correct identifications quantifies level olfactory function. As with other matrices, OCM reflects distortions sensory perception as errors identification. Previous work suggests that, within individual, hyposmia associated a stable shift perception. current study examined whether consistent shifts are also characteristic various pathologies that lead to loss. In retrospective study, response patterns for 135 hyposmic patients were fit into five-dimensional space distances between subjects reflected dissimilarities their patterns. Multivariate regression was performed relating position each 11 factors representing 33 demographic and medical history variables. One factor, named congestion (gathering variables past polyposis, nasal obstruction due swelling), significantly indicative responses on OCM, independent hyposmia. These data suggest conductive loss may be alterations perception, confusions. Such eventually serve basis clinical provide differential diagnoses sources losses.