Fig. 1From: Potential risks in using midodrine for persistent hypotension after cardiac surgery: a comparative cohort studySurvival at 30 days after cardiac surgery with Cox proportional hazard model after controlling for Euroscore II, CPB duration and propensity score. Adjusted Hazard Ratio for mortality with midodrine: 12.5 (1.5–105.2), p = 0.036Back to article page