The 4AT has the most formal diagnostic accuracy data of any delirium tool, around double that of the Confusion Assessment Method (CAM), or Nu-DESC.
In view of the strong evidence base underlying the 4AT, including a head to head diagnostic test accuracy RCT comparing 4AT with the CAM, in 2023 the UK’s National Institute for Health and Care Excellence (NICE) updated its official delirium guideline, replacing the CAM with the 4AT.
COGNITION AND DEMENTIA
New evidence briefing: how the AMT4 and Months Backwards components flag possible cognitive impairment, what a 4AT score can and cannot say about dementia, and how the tool may support 4Ms Mentation and the CMS Age-Friendly Hospital measure.