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Validation of the Delirium Rating Scale-revised-98: comparison with the delirium rating scale and the cognitive test for delirium
Trzepacz PT, Mittal D, Torres R, Kanary K, Norton J, Jimerson N.. The Journal of neuropsychiatry and clinical neurosciences, 2001-01-01
Topic: Risk, prevention and care in population studies
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.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Trzepacz, P. T., Mittal, D., Torres, R., Kanary, K., Norton, J., & Jimerson, N. (2001). Validation of the Delirium Rating Scale-revised-98: comparison with the delirium rating scale and the cognitive test for delirium. The Journal of neuropsychiatry and clinical neurosciences. https://doi.org/10.1176/jnp.13.2.229
Vancouver
Trzepacz PT, Mittal D, Torres R, Kanary K, Norton J, Jimerson N. Validation of the Delirium Rating Scale-revised-98: comparison with the delirium rating scale and the cognitive test for delirium. The Journal of neuropsychiatry and clinical neurosciences. 2001. doi:10.1176/jnp.13.2.229. PMID: 11449030.
BibTeX
@article{trzepacz2001-11449030,
author = {Trzepacz, P. T. and Mittal, D. and Torres, R. and Kanary, K. and Norton, J. and Jimerson, N.},
title = {{Validation of the Delirium Rating Scale-revised-98: comparison with the delirium rating scale and the cognitive test for delirium}},
journal = {The Journal of neuropsychiatry and clinical neurosciences},
year = {2001},
doi = {10.1176/jnp.13.2.229},
pmid = {11449030},
url = {https://doi.org/10.1176/jnp.13.2.229}
}
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
Key findings
- Mean and median DRS-R-98 scores significantly (P<0.001) distinguished delirium from each other group.
Why it matters
This study validated the Delirium Rating Scale-revised-98, finding that its scores distinguished delirium from other groups including dementia and that it is a useful diagnostic and assessment tool. It concerns assessment of delirium and reports nothing about treating, curing, or preventing Alzheimer's disease.
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Study details
- Study designlongitudinal study
- Participants68
- Evidence strengthModerate
How this study scored 58/100
Published in a peer-reviewed journal, and it is a longitudinal study following the same people over time. Scored zero for effect reported and randomised / blinded because the record does not state it. We have no data on senior author's track record, so that was left out: it earned 56 of the 96 points we could judge it on, which is 58 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (The Journal of neuropsychiatry and clinical neurosciences) |
| Journal's citation record | 2 / 4 | Journal of Neuropsychiatry: journal h-index 155 (OpenAlex, 2026-10-29) |
| Study design | 7 / 12 | A longitudinal study following the same people over time |
| Strength of evidence | 3 / 5 | Rated “moderate” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 2001 — older than 20 years, still counted |
| Sample size | 1 / 4 | 68 participants |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 3 / 3 | Studied in people (participant count stated) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 6 / 7 | Cited 955 times (OpenAlex, 2026-10-10) |
| Citations per year | 4 / 5 | 35.4 citations a year over 27 year(s) since 2001 |
| Impact for its field and year | 3 / 6 | Cited 4.3× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 3 / 6 | Cited by 11 other studies in this library |
| Still being cited | 3 / 4 | Cited 114 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | — / 4 | OpenAlex's profile for last-listed author Nita Jimerson holds only 5 work(s), too few to judge a track record — left out of this score |
| Institution's track record | 1 / 3 | Eli Lilly (United States): institution h-index 744 (OpenAlex) |
| Multi-centre collaboration | 0 / 3 | OpenAlex lists 1 institution(s) in 1 country — scores zero (affiliation lists can be incomplete) |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 11449030) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 56 / 96 | Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 56 of the 96 points we could judge it on is 58 out of 100. |
| Total | 58 / 100 | — |
What each of these 20 components measures, and what this score is not →
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Also tagged “delirium”
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