FIGURE 2.

Associations between delirium/coma-free day and CPB duration (A) and ACC duration (B). Two variables were significantly negatively associated with delirium/coma-free days. Partial r and p-values were obtained after adjustment for age, APACHE II score, SOFA score, length of ICU stays, duration of mechanical ventilator and duration of physical restraints. CPB, cardiopulmonary bypass; ACC, aortic cross-clamp; SOFA, Sequential Organ Failure Assessment; APACHE II, Acute Physiology and Chronic Health Evaluation II; ICU, intensive care unit.