Fig. 2

Clinicopathological variables and outcomes of patients with TNBC. Kaplan–Meier survival curve showed that TNBC patients with positive lymph node metastasis had significantly reduced DFS (a1) and OS (a2); TNBC patients in stage III and IV also demonstrated significantly reduced DFS (b1) and OS (b2); PELP1 was not associated with DFS or OS in TNBC patients when observed independently, although patients in the high PELP1 group demonstrated a trend of reduced DFS (c1) and OS (c2), compared with those in the low PELP1 group.