PGR and neoplasm: Spearman association coefficients between NSUN2 expression and clinical stage, Tumor classification, ER status, PR status, pathological differentiation, and Ki-67 expression were 0.217 (P=0.003), 0.216 (P=0.003), -0.325 (P<0.001), -0.239 (P=0.001), -0.158 (P=0.034), and 0.25 (P<0.007), respectively (Table 2).