Multivariate logistic regression analysis of the preoperative values revealed the following for Group 2 compared to the patients not infected with the Omicron variant: coagulation parameters (PTa, PT, fibrinogen classification), liver function (AST/ALT, albumin/globulin, IBILI, ALT classification), CBC (MCHC, eosinophils, PLT, anemia), and kidney function (uric acid) were considered to be significantly different (Figure 3). This evidence concerns the gene GPT and anemia (phenotype).