CD40LG and COVID-19: The risk for COVID-19 severity was calculated by logistic regression for aCL IgM (OR [95% CI] 1.13 [0.16, 5.02], p = 0.88), aPS IgM (1.42 [0.07, 10.62], p = 0.76), and aPI IgM (4.17 [0.51–27.78], p = 0.14).