DAS: Delirium Assessment Scale

1994

A scale for quantifying the severity of delirium in older hospital inpatients.

Classification

Measurement of delirium severity

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Tool and original sources

This record describes a method rather than a downloadable bedside form. The main source is linked below.

Original paper

Original paperShaun T. O'keeffe. Rating the severity of delirium: The delirium assessment scale. International Journal of Geriatric Psychiatry. 1994. doi: 10.1002/gps.930090708.
This is the original published source for DAS. It reported sensitivity of 83–88% and specificity of 79–88% against operationalised DSM-III delirium criteria.
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One DTA study identifiedCore instrument family

At a glance

Purpose: Measurement of delirium severity
Population: Adult
Time: variable
Score or threshold: DAS threshold not stated in accessible bibliographic summary

Format: This site classifies it under measurement of delirium severity. It is intended for adult use in the setting described in the source study. The stated administration time is variable. The published result is recorded using DAS threshold not stated in accessible bibliographic summary.

Evidence

Evidence maturityOne DTA study identified

Reported sensitivity and specificity

Headline metric source

Original/source study · 1994 — doi:10.1002/gps.930090708

Denominator: Not yet reconciled
Reference standard: Operationalised DSM-III delirium criteria

83–88%

Sensitivity

79–88%

Specificity

Operationalised DSM-III criteria; interrater κ 0.66–0.99. Confirmed via Crossref/DOI — this 1994 article is not indexed in PubMed.

More evidence and citation details

Full name: Delirium Assessment Scale
Also known as: DAS
Evidence summary: single
Diagnostic-accuracy studies: 1
Reference standard: Operationalised DSM-III delirium criteria
Citation: Shaun T. O'keeffe Rating the severity of delirium: The delirium assessment scale International Journal of Geriatric Psychiatry. 1994;9(7):551-556. doi:10.1002/gps.930090708

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Information checked: 2026-07-19

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Sources checked 2026-07-29. How profiles are prepared.