CD40LG and COVID-19: With data from 357 patients, multivariate backward stepwise logistic regression analysis resulted in two significant COVID-19 predictors: the presence of SARS-CoV-2–IgM antibody (adjusted odds ratio [aOR]: 7.02 [95% CI: 1.49–32.96]) and typical chest x-ray (aOR: 23.21 [95% CI: 10.01–53.78]).