Patients with delirium had longer time of mechanical ventilation support by 13.75 days (15.83 days versus 2.08 days; p < 0.001), longer ICU stay by 12.58 days (17.70 days versus 5.12 days; p < 0.001), longer hospital stay by 12.62 days (24.32 versus 11.70 days; p < 0.001).