We divided patients in the TCGA PAAD into four groups according to the median mRNA expression levels of miR-30d and SOX4: miR-30dlow&SOX4high, miR-30dlow&SOX4low, miR-30dhigh&SOX4high, and miR-30dhigh&SOX4low. Here, SOX4 is linked to pancreatic adenocarcinoma.