almost reached significanceP = 0.052
Subgroup of multivariate analysis adjusting HR for the other confounders (ER, PR, HER2, clinicopathological features) revealed that MMP2 overexpression was associated with unfavorable OS (HR = 1.78, 95%CI 1.32–2.39, P < 0.001) and may be an independent prognostic factor. MMP9 overexpression and survival We found an association between MMP9 overexpression and DFS that almost reached significance (HR = 1.73, 95%CI 0.99–3.01, P = 0.052), whereas subgroup of univariate and multivariate analysis both suggested a shorter DFS ( P = 0.034 and 0.006, respectively).