The TT and CT genotypes were more common than the CC genotype in patients with lymph node metastases (TT: OR=2.54, 95%CI: 1.54-4.18; CT: OR=2.10, 95%CI: 1.40-3.15), advanced stage (TT: OR=1.91, 95%CI: 1.17-3.14; CT: OR=1.80, 95%CI: 1.20-2.70), or progesterone receptor positive cancer (TT: OR=2.02, 95%CI: 1.23-3.32). This evidence concerns the gene PGR and cancer.