Fig. 4

Combining PELP1 status and Ki-67 LI as a prognostic biological marker. Kaplan–Meier survival curve showed that, combination of PELP1 status with Ki-67 status was significantly correlated with DFS (a1) and OS (a2) in patients with TNBC; patients with TNBC in PELP1/Ki-67 double high group had significantly reduced DFS (b1) and OS (b2) compared with others.