TP53 and neoplasm: Finally, the larger tumor size (OR 3.22, 95% CI, 1.93–5.35), P53 (OR 5.46, 95% CI, 2.47–12.07), higher CA19-9 level (OR 9.25, 95%CI, 3.66–23.34), and CT-reported LN status (OR 2.79, 95%CI, 1.63–4.78) were proved to be independent risk factors for LNM.