Fig. 3

PELP1 protein expression and patients’ outcome in subgroups of TNBC. Kaplan–Meier survival curve showed that, in the tumor size ≤ 2 cm subgroup, patients with high PELP1 expression had significantly shorter DFS (a1); in the high Ki-67 LI subgroups, patients with high PELP1 expression have significantly shorter DFS (b1) and OS (b2).