Figure 2
From: Self-reported symptom study of COVID-19 chemosensory dysfunction in Malaysia
Principal component analysis (PCA) of difference scores of ratings of smell, taste, and chemesthesis [(rating during COVID-19 diagnosis) minus (rating before COVID-19 diagnosis)]. The findings of the PCA are depicted by a correlation circle of vectors representing changes in perceived smell, taste, chemesthesis and nasal blockage with the first (Dimension 1, abscissa) and second (Dimension 2, ordinate) principal components.
