We found that Th1 markers (STAT1 and IFN-γ), Th2 markers (GATA3, STAT6, and STAT5A), a Tfh marker (BCL6), and a Th17 marker (STAT3) were significantly positively correlated with YAP1 in PAAD. This evidence concerns the gene STAT1 and pancreatic adenocarcinoma.