GPC1 and neoplasm: Univariate analysis indicated that the residual tumor (p < 0.001), tumor size ≥30 mm (p = 0.027), lymphatic invasion (p = 0.007), pT factor ≥2 (p = 0.046), pN factor ≥2 (p < 0.001), pStage ≥3 (p = 0.012), and high GPC1 concentration (p < 0.001) were correlated with poor overall survival (Table 3).