Fig. 2From: Predictive factors of severe coronavirus disease 2019 in previously healthy young adults: a single-center, retrospective studyLymphocyte count for severe progressed coronavirus disease in previously healthy adults using receiver operating characteristic curves. The area under the curve of lymphocyte count is 0.791(95% confidence interval: 0.704–0.877) (P < 0.001). The best cutoff for lymphocyte count for prediction 0.905*109/L is with a specificity of 64.3% and a sensitivity of 84.2% (P < 0.001)Back to article page