Figure 2. Kaplan-Meier Estimates of the Probability of the Composite Primary Outcome.
Raw data for the Kaplan-Meier probability of death or major postoperative complications were censored at 28 days after surgery. Major postoperative complications were acute kidney injury stage 1 or higher according to the Kidney Disease: Improving Global Outcomes (KDIGO) criteria, acute respiratory failure requiring invasive or noninvasive mechanical ventilation, acute heart failure, major septic complications, and unplanned reoperation. The median observation time was 28 days (interquartile range, 4-28 days) for the HES group and 28 days (interquartile range, 6-28 days) for the saline group.