Figure 4.
Correlation of IFN-γ levels in male and female COVID-19 patients to estradiol levels. Estradiol levels measured in plasma of critically ill male and female COVID-19 patients were plotted against the expression levels of all cytokines and chemokines assessed. Here, only IFN-γ is displayed, which showed a significant correlation to estradiol levels. Statistical significance was assessed by generalized linear regression.