Table 2.

Behavioral assessment scores for commonly used intensive care unit tools for available sedation days. If multiple assessments were present on one day, the assessment closest to the time of the EEG read was used.

Behavioral assessment	EEG consistent with over-sedation	EEG consistent with adequate sedation
no. of patient days (%)
GCS = 3 or 4	52/55 (95)	39/40 (98)
GCS >= 5	3/55 (5)	1/40 (2)
RASS = −4 or −5	52/55 (95)	35/37 (95)*
RASS >= −3	3/55 (5)	2/37 (5)*
CAM-ICU positive**	3/3	2/2

GCS = Glasgow Coma Scale; RASS = Richmond Agitation-Sedation Scale; CAM-ICU = Confusion Assessment Method for the Intensive Care Unit.

*RASS scores were missing for 3 patients in the adequate sedation group.

^**CAM-ICU is not assessable in patients with a RASS score of −4 or −5. Therefore, the test is only reported for those patients with a RASS score of >= −3.