YY1 and gastric cancer: Cox regression analysis of these gastric cancer cases indicated that distant metastasis (hazard ratio HR = 2.126, P = 0.003), TNM stage (HR = 2.352, P = 0.001), miR-584-3p expression (HR = 0.312, P = 0.018), and YY1 levels (HR = 2.743, P = 0.011) were independent prognostic factors for gastric cancer patients (Supplementary Table S3).