Diagnostic test accuracies of 4AT items are consistent across the range of baseline cognition: results from two prospective studies

Hannah Cheston

doi:10.1093/ageing/afag182

Diagnostic test accuracies of 4AT items are consistent across the range of baseline cognition: results from two prospective studies

2026-06-24

0

OA

AI

H

Hannah Cheston

O

Ophelia Dunne

D

Dominic Gardner

A

Amy McWhirter

M

Mark James Rawle

I

Imogen Stoodley

S

Sarah Joanna Richardson

L

Louise M Allan

A

Alasdair M J MacLullich

D

Daniel H J Davis

A

Alex Tsui

DOI：10.1093/ageing/afag182

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Abstract

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Presenting features of delirium can be difficult to distinguish from co-existing dementia phenomenology. While the 4 ‘A’s Test (4AT) is a well validated delirium screening tool across multiple patient populations and healthcare settings, how its diagnostic performance varies across different levels of baseline cognition is unclear.

Diagnostic test accuracies of 4AT items are consistent across the range of baseline cognition: results from two prospective studies

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