GPT and COVID-19: Interestingly, the probabilities of elevated AST or ALT in COVID-19 patients who were positive for serum viral RNA were higher than those in COVID-19 patients who were negative for serum viral RNA (AST: odds ratio = 16, 95% CI = 1.09–234.26; ALT: odds ratio = 8, 95% CI = 0.60–106.94) (Fig. 4C).