The results are summarized in Table 7 and indicate that in the codominant model, ACE2-DD genotype (II vs. DD) was strongly associated with increased COVID-19 mortality OR 8.25 (95%) CI = (2.40 to 28.34), RR = 3.26 (1.7894 to 5.9596), p < 0.008. Here, ACE2 is linked to COVID-19.