GPT and susceptibility to pneumonia measurement: Multivariate logistic regression analysis of the postoperative values revealed the following for Group 2 compared with patients not infected with the Omicron variant: lung infection/pneumonia, coagulation parameters (fibrinogen classification), liver function (AST/ALT, globulin, TBIL classification), CBC (WBC), and kidney function (uric acid) were considered to be significantly different (Figure 4).