GPC1 and neoplasm: As shown in Table 2, the following clinical factors were significantly correlated with the high GPC1 levels group: male (p = 0.036), tumor size ≥30 mm (p = 0.028), presence of venous invasion (p = 0.041), pT factor ≥2 (p = 0.005), pStage ≥3 (p = 0.022), residual tumor (p = 0.022), and distant metastatic recurrence (p = 0.022).