Cox proportional hazards regression analysis did not reveal any significant associations between resistin-positive and strongly EGFR-positive tumor tissue (hazard ratio (HR) = 0.736, 95%CI = 0.198–2.734, P = 0.648; 0.765, 0.110–5.323, P = 0.786), strongly resistin-positive and strongly EGFR-positive tumor tissue (0.784, 0.273–2.255, P = 0.652; 0.359, 0.100–1.294, P = 0.118), and RFS or OS. Here, RETN is linked to neoplasm.