In gastric cancer, univariate analysis revealed that WFDC2 concentration (HR = 1.04, 95% CI: 1.01–1.07, p = 0.005) and PS (HR = 2.46, 95% CI: 1.02–5.90, p = 0.044) were significantly associated with OS. Here, WFDC2 is linked to gastric cancer.