As shown in Table 2, during the initial diagnosis, there were no significant differences in blood routine, elevated IgM (>1 × ULN) rate or elevated IgA (>1 × ULN) rate between the AIH group and the other four groups (p > 0.0125); the serum IgG and globulin levels were significantly higher in the AIH group than those in the other four groups after multiple testing correction (p < 0.0125). This evidence concerns the gene CD40LG and autoimmune hepatitis.