As showed in Table 1, the percentage of pancreatic cancer samples with NNMTh was 55.6% (99/178), significantly higher than that of paracancerous tissues (21.4%) and chronic pancreatitis (14.8%) (p < 0.001), indicating that in general, NNMT is upregulated in pancreatic cancer. Here, NNMT is linked to chronic pancreatitis.