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DAS: Delirium Assessment Scale

1994

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

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.

Primary validation papers

1 identified diagnostic-accuracy paper

Other forms of validation are described in the evidence section. What is counted?

Large-scale clinical implementation

Not yet reviewed.

A focused implementation review has not yet been completed for this profile.

Training and instructions

Public training resources have not yet been confirmed in this review. Check the linked developer or original source for instructions.

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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.

    Open source ↗
One DTA study identifiedCore instrument family
Classification

Classification

Measurement of delirium severity

A tool may belong to more than one category. Select a linked category to see other relevant profiles.

Evidence

Diagnostic-accuracy evidenceOne 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 evaluations
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
Download RIS ↗ Download BibTeX ↗

Primary validation studies

Distinct primary publications from the current diagnostic-accuracy audit. Reviews and repeated evaluations within one paper are not counted again. Overlapping cohorts have not all been reconciled. Read the counting rules and limitations.

Open 1 identified paper
  1. Shaun T. O'keeffe (1994). Rating the severity of delirium: The delirium assessment scale. International Journal of Geriatric Psychiatry.

    Reference category: other comparator or secondary accuracy evidence.

Copyright and reuse
Information checked
2026-07-19

Instrument-specific terms apply. See the access and copyright policy or send a correction.

Base clinical review: 2026-07-29. Instrument description source check: 2026-09-05. Scope and limitations.