The serum GGT activity was the best biomarker for liver cancer with an AUC of 0.86, a sensitivity of 70%, and a specificity of 87%, which were followed by pancreatitis (AUC = 0.84), hepatic encephalopathy (AUC = 0.80), and cirrhosis (AUC = 0.77). Here, GGT1 is linked to Cirrhosis.