extremely significantP<0.0001
Correlation between self-reported evaluation score and a computed symptoms score A moderate correlation was found between the self-reported evaluation score (on a scale 0-10) and a computed symptoms score (by adding up all the symptoms a patient presents), by using Spearman's rho (0.584), which was extremely significant (P<0.0001), indicating an accurate correlation between the patients' estimate of disease severity and the number of symptoms ( Fig. 4 ).