Figure 3.

Stent patency time and survival time after E-RI. Kaplan–Meier curve showing time to recurrent biliary obstruction after E-RI (a) and survival time after E-RI (b). Comparison between distal and proximal malignant biliary obstruction groups in relation to stent patency time after E-RI (not reached and 182 days, respectively, log-rank P = 0.09) (c) and survival time (76 and 170 days, respectively, log-rank P = 0.03) (d). Comparison between patients treated with chemotherapy or with best supportive care groups of stent patency time after E-RI (394 and 98 days, respectively, log-rank P = 0.02) (e) and survival time (234 and 84 days, respectively, log-rank P = 0.02) (f). E-RI: Endoscopic reintervention