FIG 2.

COVID-19 patients with IFN-γ indeterminate controls have increased neutrophils but otherwise similar levels of lymphocytes and neutrophils during the course of hospitalization. (A) COVID-19 patients with indeterminate IFN-γ controls have slightly more neutrophils on average at the time IFN-γ testing was performed, leading to a higher neutrophil/lymphocyte ratio. Abs., absorbance. (B) COVID-19 patients with better outcomes had similar counts of lymphocytes and neutrophils at the time of IFN-γ testing. Comparisons of differences in continuous variables within these groups were performed using the independent unpaired t test or the Welch’s t test, as appropriate, where a difference in means was considered significant if the P value was less than 0.05. *, P < 0.05; **, P < 0.005.