Biomarker → COVID-19KIM-1—COVID-19H: OR = 0.86; P = 3.81 × 10−4; P Egger = .14Mediation analysis:KIM-1 mediated the association BMI–COVID-19 HOR = 1.23; P = 5.65 × 10−3. This evidence concerns the gene HAVCR1 and COVID-19.