Kaplan–Meier OS analysis showed that high expression of HNRNPA2B1 was a risk factor for patients with ACC, GBMLGG, KICH, LUAD, LIHC, LAML, TARGET-LAML, LGG, PRAD, and SARC, and a favorable factor for patients with STAD and UCEC. This evidence concerns the gene HNRNPA2B1 and gastric adenocarcinoma.