Timing of upper gastrointestinal endoscopy does not influence short-term outcomes in patients with acute variceal bleeding

Figure 1 Comparison of 6-wk survival in the urgent and the non-urgent endoscopy groups. Kaplan-Meier survival plot stratified by timing of endoscopy of all patients. The dotted line indicates urgent endoscopy and the solid line indicates non-urgent endoscopy. The black line is the unadjusted cumulative survival graph before inverse probability weighting (IPW), and the gray line is the adjusted after the IPW correction.