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Validation of a 6 item cognitive impairment test with a view to primary care usage
Brooke P, Bullock R.. International journal of geriatric psychiatry, 1999-11-01
Topic: Risk, prevention and care in population studies
Objective To validate the 6 Item Cognitive Impairment Test (6CIT) against the Mini-Mental State Exam (MMSE) with a view to usage as a screening tool. Design Three groups with varying levels of dementia were tested using the MMSE, 6CIT and Global Deterioration Scale (GDS). Setting Testing was carried out within Wiltshire, both in the community and outpatients. Subjects Patients were selected from a hospital database of dementia patients and were stratified into two groups according to GDS; a control group was also tested. Results Two hundred and eighty-seven patients were tested: 135 controls (GDS 1-2), 70 with mild dementia (GDS 3-5) and 82 with more severe dementia (GDS 6-7). The 6CIT and MMSE were found to correlate well, r(2)=-0.911 (p Conclusion The 6CIT is a brief and simple test of cognition, which correlates well with the MMSE but outperforms it in milder dementia. The MMSE is of little value as a screening test for dementia.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
APA 7th
Brooke, P., & Bullock, R. (1999). Validation of a 6 item cognitive impairment test with a view to primary care usage. International journal of geriatric psychiatry. https://doi.org/10.1002/(sici)1099-1166(199911)14:11<936::aid-gps39>3.0.co;2-1
Vancouver
Brooke P, Bullock R. Validation of a 6 item cognitive impairment test with a view to primary care usage. International journal of geriatric psychiatry. 1999. doi:10.1002/(sici)1099-1166(199911)14:11<936::aid-gps39>3.0.co;2-1. PMID: 10556864.
BibTeX
@article{brooke1999-10556864,
author = {Brooke, P. and Bullock, R.},
title = {{Validation of a 6 item cognitive impairment test with a view to primary care usage}},
journal = {International journal of geriatric psychiatry},
year = {1999},
doi = {10.1002/(sici)1099-1166(199911)14:11<936::aid-gps39>3.0.co;2-1},
pmid = {10556864},
url = {https://doi.org/10.1002/(sici)1099-1166(199911)14:11<936::aid-gps39>3.0.co;2-1}
}
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
- Results Two hundred and eighty-seven patients were tested: 135 controls (GDS 1-2), 70 with mild dementia (GDS 3-5) and 82 with more severe dementia (GDS 6-7).
Why it matters
This study found that the 6 Item Cognitive Impairment Test correlated well with the Mini-Mental State Examination and outperformed it in milder dementia. It is about a screening tool for dementia, not about treating, curing, or preventing Alzheimer's disease.
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Study details
- Evidence strengthLow
How this study scored 41/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people 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 39 of the 96 points we could judge it on, which is 41 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (International journal of geriatric psychiatry) |
| Journal's citation record | 2 / 4 | International Journal of Geriatric Psychiatry: journal h-index 190 (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 | 1 / 5 | 1999 — older than 20 years, still counted |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 6 / 7 | Cited 522 times (OpenAlex, 2026-10-10) |
| Citations per year | 3 / 5 | 18.0 citations a year over 29 year(s) since 1999 |
| Impact for its field and year | 2 / 6 | Cited 2.7× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 2 / 6 | Cited by 7 other studies in this library |
| Still being cited | 3 / 4 | Cited 95 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | — / 4 | OpenAlex's profile for last-listed author Roger Bullock holds only 2 work(s), too few to judge a track record — left out of this score |
| Institution's track record | 0 / 3 | Victoria Hospital: institution h-index 121 (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 10556864) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 39 / 96 | Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 39 of the 96 points we could judge it on is 41 out of 100. |
| Total | 41 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
- DOI: 10.1002/(sici)1099-1166(199911)14:11<936::aid-gps39>3.0.co;2-1
- PubMed: 10556864
- Original source →
May need a subscription OpenAlex found no free copy of the full text (checked 6 Feb 1020), so the publisher may charge for it. The PubMed abstract is free.
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