Table 3.

Sedation category according to Richmond Agitation Sedation Scale (RASS) for patients who had a highest and lowest RASS score recorded on the study day

RASS score	Description	Patients with a RASS score recorded
Lowest RASS score ≥ 1	Restless through to overtly combative every time RASS recorded on the study day	2% (9)
Highest RASS score ≥ 1	Restless through to overtly combative for at least part of the study day	25% (126)
Highest RASS score ≤ -4	Deep sedation/unarousable every time RASS recorded on the study day	10% (49)
Lowest RASS score ≤ -4	Deep sedation/unarousable for at least part of the study day	23% (115)