The COVID-19 mortality rate was related to mean age, ALT, HDL, LDL, FBS, uric acid, creatinine, ESR, 25-hydroxyvitamin D, real-time PCR Ct values, SARS-CoV-2 variants, and IFITM3 rs6598045 GG (Table 4). The gene discussed is GPT; the disease is COVID-19.