“…The CAM-S scores the severity of 10 delirium related features: 1) acute change/fluctuating course, 0-1; 2) inattention, 0-2; 3) altered level of consciousness, 0-2; 4) disorganized thinking, 0-2; 5) disorientation, 0-2; 6) memory impairment, 0-2; 7) perceptual disturbances, 0-2; 8) psychomotor agitation, 0-2; 9) psychomotor retardation, 0-2; and 10) altered sleep-wake cycle, 0-2. Additionally, the Richmond Agitation-Sedation Scale (RASS; normal = 0) was used to assess level of arousal (29), and we collected the Age-adjusted Charlson Comorbidity Index (calculated via the medical record) (30).…”