Figure 4
From: Changes in smell and taste perception related to COVID-19 infection: a case–control study
Bi-plots from Principal Component Analysis with confidence ellipses (confidence level 95%) conducted on variables related to smell and taste measurements (Identification Smell Score, Intensity Smell Score, Irritation Smell Score, Identification Taste Score, Intensity Taste Score) obtained for COVID group (n = 61). Patients characterized by a low and high sensory performance are displayed in orange (LOW Perf) and blue (HIGH Perf), respectively.
