Multivariate regression analysis adjusted for variables with p < 0.05 in the univariate analysis revealed a shift in factors associated with ICU mortality; hypertension and the Hb and TBIL concentrations no longer showed significant associations, whereas high serum ACE2 concentrations did (adjusted OR 1.75, 95% CI 1.00–3.06, p = 0.050). This evidence concerns the gene GSTM1 and hypertensive disorder.