GAPDH and neoplasm: The correlation analysis of PSCA titers and known clinicopathologic prognostic parameters showed that clinical (odds ratio [OR] 15.049) and pathologic T stage presence (OR 8.431), a positive resection margin (OR 9.545), and apical tumor involvement (OR 13.291) were significantly correlated with PSCA titer, and BCR (OR 8.091) and perineural invasion (OR 8.233) were significantly correlated with the PSCA/GAPDH ratio (p < 0.05, Table 2).