Fig. 3.

Box plots of delta RASS scores show three different populations of CAM-ICU-positive patients. Group 1 represents patients whose RASS scores only increased over time. In two of these patients, this resulted from neurological recovery after effective treatment of seizures; the other two patients steadily improved after initiation of hemodialysis for uremia. Group 2 represents patients whose RASS scores only decreased over time, and both patients were found to have worsening SDH that eventually required surgical intervention. Group 3 represents the rest of the CAM-ICU-positive patients, whose RASS scores fluctuated up and down without clear cause