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Reliability and validity analysis of the Chinese version of the Quick Dementia Rating System (QDRS)
Hang Su, Jiehua Zhu, Yifan Wang, Jun Hong Jin, Qihao Guo. BMC Geriatrics, 2025-07-02
Topic: Risk, prevention and care in population studies
/df = 2.81, P < 0.001). There were strong correlations between the C-QDRS and standardized neuropsychological tests, indicating that the C-QDRS exhibited concurrent validity (all P < 0.001). ROC analyses showed optimal cutoff values of 1.0 for obj-SCD, 2.5 for MCI, and 5.0 for AD, with AUCs of 0.802, 0.840, and 0.907, respectively. The C-QDRS showed statistically superior discriminative ability compared to ACE-III and MoCA-B in detecting obj-SCD (both P < 0.05). The C-QDRS is a precise and effective tool for screening both AD and preclinical AD in China.
Key findings
- There were strong correlations between the C-QDRS and standardized neuropsychological tests, indicating that the C-QDRS exhibited concurrent validity (all P < 0.001).
- ROC analyses showed optimal cutoff values of 1.0 for obj-SCD, 2.5 for MCI, and 5.0 for AD, with AUCs of 0.802, 0.840, and 0.907, respectively.
- The C-QDRS showed statistically superior discriminative ability compared to ACE-III and MoCA-B in detecting obj-SCD (both P < 0.05).
- The C-QDRS is a precise and effective tool for screening both AD and preclinical AD in China.
Why it matters
This study found that the Chinese version of the Quick Dementia Rating System is a precise and effective tool for screening Alzheimer's disease and preclinical Alzheimer's disease. It is about improving screening accuracy, not about treating, curing, or preventing the disease.
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Study details
- Participants366
- Evidence strengthLow
How this study scored 45/100
Published in a peer-reviewed journal. Scored zero for study design, effect reported and randomised / blinded because the record does not state it.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (BMC Geriatrics) |
| Journal's citation record | 2 / 4 | BMC Geriatrics: journal h-index 153 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 4 / 5 | 2025 — within 3 year(s) of the newest study here |
| Sample size | 2 / 4 | 366 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 | 2 / 7 | Cited 7 times (OpenAlex, 2026-10-10) |
| Citations per year | 1 / 5 | 2.3 citations a year over 3 year(s) since 2025 |
| Impact for its field and year | 3 / 6 | Cited 4.4× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 1 / 6 | Cited by 1 other studies in this library |
| Still being cited | 1 / 4 | Cited 7 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | 2 / 4 | Last-listed author Qihao Guo: h-index 45 (OpenAlex, whole career) |
| Institution's track record | 1 / 3 | Shanghai Jiao Tong University: institution h-index 975 (OpenAlex) |
| Multi-centre collaboration | 1 / 3 | OpenAlex lists 2 institution(s) in 1 country |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 40604558) |
| Free to read | 2 / 2 | Free to read |
| Total | 45 / 100 | — |
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Read the original
Full text: free to read — OpenAlex lists this copy as free to read: the link above (checked 6 Feb 1020).
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
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.
APA 7th
Su, H., Zhu, J., Wang, Y., Jin, J. H., & Guo, Q. (2025). Reliability and validity analysis of the Chinese version of the Quick Dementia Rating System (QDRS). BMC Geriatrics. https://doi.org/10.1186/s12877-025-06112-3
Vancouver
Su H, Zhu J, Wang Y, Jin JH, Guo Q. Reliability and validity analysis of the Chinese version of the Quick Dementia Rating System (QDRS). BMC Geriatrics. 2025. doi:10.1186/s12877-025-06112-3. PMID: 40604558.
BibTeX
@article{su2025-40604558,
author = {Su, Hang and Zhu, Jiehua and Wang, Yifan and Jin, Jun Hong and Guo, Qihao},
title = {{Reliability and validity analysis of the Chinese version of the Quick Dementia Rating System (QDRS)}},
journal = {BMC Geriatrics},
year = {2025},
doi = {10.1186/s12877-025-06112-3},
pmid = {40604558},
url = {https://doi.org/10.1186/s12877-025-06112-3}
}
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