Comparison and Agreement Between the Richmond Agitation-Sedation Scale and the Riker Sedation-Agitation Scale in Evaluating Patients' Eligibility for Delirium Assessment in the ICU

In a cohort of 975 ICU admissions, the correlation between the Richmond Agitation-Sedation Scale (RASS) and the Riker Sedation-Agitation Scale (SAS) was 0.91.

• The agreement between RASS and SAS for assessing eligibility for delirium screening was estimated to be 0.93.
• 70.1% of patients were eligible for CAM-ICU assessment using RASS, while 72.1% were eligible using SAS.
• In mechanically ventilated patients, RASS identified 19.1% as CAM-ICU eligible compared to 24.6% identified by SAS.
• The correlation coefficient in the mechanically ventilated subgroup was 0.70, with an agreement of 0.81.

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