CYGB and COVID-19: Specifically, ORs for severe COVID-19 were 1.21 for Tnl, 0.74 for BASO, 0.76 for HGB, and 0.83 for HCT per SD increase (95% CIs: 1.02–1.43, 0.60–0.93, 0.61–0.94, and 0.70–0.97, respectively; Table S9).