Figure 6.

Diagnostic value of the clinical and immunological factors that distinguish between severe COVID-19 and pandemic influenza A(H1N1). Receiver operating characteristic (ROC) curves were constructed for the clinical and immunological characteristics that showed significant OR values in the bivariate logistic regression analysis. ROC curves of variables associated with pandemic influenza A(H1N1) are shown in blue color, whereas variables associated with severe COVID-19 are displayed in red color. The graphs show area under the curve (AUC) and 95% CI interval values.