Validation of the Delirium Rating Scale-Revised-98: Comparison With the Delirium Rating Scale and the Cognitive Test for Delirium

Abstract

The DRS-R-98, a 16-item clinician-rated scale with 13 severity items and 3 diagnostic items, was validated against the Cognitive Test for Delirium (CTD), Clinical Global Impression scale (CGI), and Delirium Rating Scale (DRS) among five diagnostic groups (N=68): delirium, dementia, depression, schizophrenia, and other. Mean and median DRS-R-98 scores significantly (P<0.001) distinguished delirium from each other group. DRS-R-98 total scores correlated highly with DRS, CTD, and CGI scores. Interrater reliability and internal consistency were very high. Cutoff scores for delirium are recommended based on ROC analyses (sensitivity and specificity ranges: total, 91%-100% and 85%-100%; severity, 86%-100% and 77%-93%, respectively, depending on the cutoffs or comparison groups chosen). The DRS-R-98 is a valid measure of delirium severity over a broad range of symptoms and is a useful diagnostic and assessment tool. The DRS-R-98 is ideal for longitudinal studies.

Imagerie préopératoire par résonance magnétique du cerveau et délirium postopératoire après pontage coronarien à cœur battant: une étude prospective de cohorte

“…It include three severity items and three diagnostic items, for a maximum total score of 46 points. 23 The DRS-R98 divides delirium into three categories based on severity: no delirium (total points 0), subclinical delirium (total points 1-7), and delirium (total points C 8). 24 Operative procedure All patients underwent standard OPCAB using an aortic ''no-touch'' technique, avoiding aortic side clamping and manipulation of the ascending artery to minimize the risk of stroke.…”

Neurocognitive Changes after Lung Transplantation

“…The DRS-98 (19) was administered after transplant to assess for delirium severity (20). The DRS-98 is a 16-item scale administered by a clinician to assess the severity of delirium based on all available information from patient interview, family, and nurses' reports and from neurocognitive and medical tests measures over a 24-hour period.…”

Risk factors of delirium in elderly patients with hip fracture

“…Other less commonly used diagnostic tools that feature different use of DSM criteria include the Organic Brain Syndrome Scale (OBS scale) [40] and the Delirium Symptom Interview (DSI) [41]. Severity scales designed for use by experts with significant professional training were the delirium Rating Scale (DRS-R-98) [42] and Memorial Delirium Assessment Scale (MDAS) [43]. Screening scale developed by nurses are the Delirium Observation Screening Scale (DOS) [44] and The NEECHAM Confusion Scale (NEECHAM) [45].…”