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3D-CAM-S: 3D-CAM Severity Score

2016

A 0-7 severity method derived from information collected during 3D-CAM. It adds longitudinal severity measurement without creating a second patient interview.

At a glance

Purpose
Measurement of delirium severity
Population
Adult
Setting
General / acute hospital, Perioperative
Time
derived during the approximately 3-minute parent assessment
Score or threshold
0-7 severity range; not a diagnostic threshold

Format: 3D-CAM-S converts findings already collected during 3D-CAM into a 0-7 severity value. The protected feature-scoring procedure is not reproduced here; use the publication and authorised 3D-CAM materials.

Primary validation papers

0 identified diagnostic-accuracy papers

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.

Start here

Tool and original sources

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

Read the full paper ↗ Official information and permissions ↗

Original paper

  • Principal sourceVasunilashorn SM, Guess J, Ngo L, Fick D, Jones RN, Schmitt EM, et al. Derivation and Validation of a Severity Scoring Method for the 3-Minute Diagnostic Interview for Confusion Assessment Method--Defined Delirium. Journal of the American Geriatrics Society. 2016;64(8):1684-9. doi: 10.1111/jgs.14234. PMID: 27374833.

    This paper reports the derivation and initial validation of 3D-CAM-S itself. It is the main source for the method, its intended use and the evidence available at publication.

    Open PubMed ↗
No eligible DTA study identifiedVersion or adaptation
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 evidenceNo eligible DTA study identified

Reported sensitivity and specificity

not applicable
Sensitivity
not applicable
Specificity

Agreement with CAM-S short form was high in derivation and held-out validation data.

More evidence and citation details
Full name
3D-CAM Severity Score
Related profiles
3D-CAM, CAM-S, Raw 3D-CAM severity score
Evidence summary
derivation-and-internal-validation
Citation
Vasunilashorn SM, Guess J, Ngo L, Fick D, Jones RN, Schmitt EM, Kosar CM, Saczynski JS, Travison TG, Inouye SK, Marcantonio ER Derivation and Validation of a Severity Scoring Method for the 3-Minute Diagnostic Interview for Confusion Assessment Method-Defined Delirium Journal of the American Geriatrics Society. 2016;64(8):1684-1689. PMID 27374833
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.

No eligible diagnostic-accuracy paper is currently included in this audit. This does not mean the tool has never been validated. The source paper and other evidence on this profile may concern severity, reliability or another measurement purpose.

Copyright and reuse
Version
3D-CAM-S severity scoring method reported in 2016
Rights holder
Underlying 3D-CAM/CAM materials: Hospital Elder Life Program / Aging Brain Center; the exact 3D-CAM-S rights holder was not independently verified
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.