CAM-S — Confusion Assessment Method – Severity

2014

Severity scoring system derived from the CAM (4-item short form and 10-item long form) with strong associations to clinical outcomes.

Severity measurementMultiple validation studies

Full nameConfusion Assessment Method – Severity

Also known asCAM-S, CAM Severity, Confusion Assessment Method Severity

PurposeSeverity measurement

PopulationAdult

SettingGeneral / acute hospital, Perioperative

Items10

Administrationvariable

EvidenceMultiple validation studies

Reference typeOriginal validation study

Reference standardCAM (add-on)

Validation samplen = 300 + 919

Cut-off / scoringShort 0–7; long 0–19

Strengths＋ Severity scoring integrated with the CAM; predicts outcomes

Limitations− Requires the CAM to be scored first

ReferenceInouye SK, Kosar CM, Tommet D, et al. The CAM-S: development and validation of a new scoring system for delirium severity in 2 cohorts. Ann Intern Med. 2014;160(8):526-533. PMID 24733193

Download RIS Download BibTeX DOI ↗ Original validation study ↗Official source ↗

Key studies

Chinese CAM-S reliability and validity study (2019)

* Where shown, sensitivity/specificity are from the cited validation cohort and are not pooled estimates. Citation metadata was checked against PubMed or the publisher DOI record; a checked reference does not imply validation, study quality or endorsement. See the Methodology.