CSF1 and COVID-19: Interestingly, pGSN/CTAK (AUC=0.833; p=0.016), pGSN/M-CSF (AUC=0.772; p=0.049) and pGSN/SCGF-b (AUC=0.772; p=0.049) but not the other ratios, significantly predicted survival to hospital discharge of COVID-19 patients (Figure 5C).