Fig. 3From: Severity-associated markers and assessment model for predicting the severity of COVID-19: a retrospective study in Hangzhou, ChinaViolin plots of the risk scores in different degrees of COVID-19 severity. Width of the violin plots represented the frequency of the risk score in that level. Each box represented the lower quartile (25%), median (50%) and upper quartile (75%). The horizontal dashed line represented the cutoff value of the risk score (71)Back to article page