DRS-R-98 — Delirium Rating Scale-Revised-98

2001

Revised 16-item scale (13 severity, 3 diagnostic items) widely used to measure delirium severity over a broad symptom range in research.

Detailed research assessmentSeverity measurementMultiple validation studies

Full nameDelirium Rating Scale-Revised-98

Also known asDRS-R-98, Delirium Rating Scale Revised 98, DRS-R98

PurposeDetailed research assessment, Severity measurement

PopulationAdult

SettingGeneral / acute hospital

Items16

Administrationvariable

EvidenceMultiple validation studies

Reference typeOriginal validation study

Reference standardClinical diagnosis (5 groups)

Validation samplen = 68

Cut-off / scoringCut-offs by comparison group

ReliabilityHigh inter-rater; high internal consistency

Strengths＋ Broad symptom coverage; ideal for longitudinal severity

Limitations− Requires clinician training/time

ReferenceTrzepacz PT, Mittal D, Torres R, et al. Validation of the Delirium Rating Scale-revised-98. J Neuropsychiatry Clin Neurosci. 2001;13(2):229-42. PMID 11449030

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

Key studies

Korean reliability and validity study (2011)

* 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.