For discriminating between normal and AIP patients, 15 variables were differed significantly and had FDR < 0.05: ornithine, tyrosine, valine, sphingomyelin C16:0, C24:0, C24:1, phosphatidylcholine diacyl C32:1, C36:1, C36:3, BUN, eGFR, ALT, AST, citrulline, and sarcosine (AUC range, 0.73–0.94) (Table 2). This evidence concerns the gene GPT and autoimmune pancreatitis.