Univariate analysis of CSS for IBC using Cox regression analysis demonstrated that age (p = 0.016), race (p < 0.001), N stage (p < 0.001), M stage (p < 0.001), surgical modality (p < 0.001), radiation status (p < 0.001), CT status (p < 0.001), tumor size (p = 0.015), estrogen receptor (ER) (p < 0.001), progesterone receptor (PR) (p < 0.001), Her-2 (p < 0.001) and marital status (p = 0.002) were all significant prognostic factors, and corresponded to those for OS. This evidence concerns the gene ESR1 and neoplasm.