Fig. 3

Kaplan-Meier curves of disease-free survival (DFS) in patients with hilar cholangiocarcinoma. a DFS was significantly worse in patients with regional lymph node metastasis than in those without lymph node metastasis (0.92 years vs 1.83 years, P = 0.015); b DFS was significantly worse in patients with positive surgical margins than in those with negative surgical margins (0.75 years vs 1.50 years, P = 0.024); c DFS was significantly worse in patients with advanced disease stage than in those with early disease stage (1.00 year vs 2.73 years, P = 0.023); d DFS was significantly worse in patients with RPL34-positive tumors than in those with RPL34-negative tumors (1.46 years vs 3.73 years, P < 0.001)