APOA1 and diabetes mellitus: Finally, the use of both cholesterol (3.27% vs. 8.82%, with p < 0.001 for HDL, <5% vs. <8% with p = 0.012 for the apoA1 group) and diabetes (4.23% vs. 8.82% with p < 0.001 for the HDL group, and 6.38% vs. 12.05% with p = 0.012 for the apoA1 group) drugs increased the risk of severe COVID-19.