Still, there were no significant differences (Table 2). Antinuclear antibody (ANA) was the most prevalent (76%) autoantibody (88% in males vs 71.7% in females; p value=0.08), and anti-smooth muscle antibody (ASMA) was the second most common (55%) antibody found in AIH (Table 2). This evidence concerns the gene ACTA1 and autoimmune hepatitis.