Figure 1.

Cohort diagram of the study. ∗UTA: unable to assess (with the CAM-ICU). 2If patients were too ill and then died, only the first reason for nonparticipating is shown.

Cohort diagram of the study. ∗UTA: unable to assess (with the CAM-ICU). 2If patients were too ill and then died, only the first reason for nonparticipating is shown.