This page is alzhub.org's plain-English summary of a published study, not the paper itself. It is generated from the record we hold for this study, sourced and linked below — check the original for the full text and methods.

60/100

✓ Peer-reviewed alzhub usefulness score 60 out of 100. Clinical safety

Topic: Risk, prevention and care in population studies

Of 689 participants, CI was associated with delirium (adjusted odds ratio [aOR]: 3.64, 95% CI: 1.31, 9.49, P-value = 0.009), 90-day complications (aOR: 2.26, 95% CI: 1.14, 4.28, P-value = 0.015), and 90-day composite adverse outcomes (aOR: 2.03, 95% CI: 1.03, 3.81, P-value = 0.033). Importantly, the AD8 item on repetition was associated with delirium (aOR: 6.11, 95% CI: 2.05, 16.48, P-value = 0.004), 30-day complications (aOR: 2.53, 95% CI: 1.43, 4.45, P-value = 0.004), and 30-day composite adverse outcomes (aOR: 2.52, 95% CI: 1.44, 4.46, P-value = 0.004). Also, memory-related problems showed higher odds of delirium (aOR: 5.11, 95% CI: 1.90, 13.32, P-value = 0.007), 30-day all-cause complications (aOR: 1.77, 95% CI: 1.11, 2.79, P-value = 0.044), and 30-day composite adverse outcomes (aOR: 2.02, 95% CI: 1.30, 3.14, P-value = 0.008). A positive AD8 screen identified older surgical patients at risk of delirium and 90-day complications. Of all AD8 items, repetition was associated with the greatest number of adverse outcomes within 30 days postoperatively, highlighting its potential preoperative utility.

Key findings

Of 689 participants, CI was associated with delirium (adjusted odds ratio [aOR]: 3.64, 95% CI: 1.31, 9.49, P-value = 0.009), 90-day complications (aOR: 2.26, 95% CI: 1.14, 4.28, P-value = 0.015), and 90-day composite adverse outcomes (aOR: 2.03, 95% CI: 1.03, 3.81, P-value = 0.033).
Importantly, the AD8 item on repetition was associated with delirium (aOR: 6.11, 95% CI: 2.05, 16.48, P-value = 0.004), 30-day complications (aOR: 2.53, 95% CI: 1.43, 4.45, P-value = 0.004), and 30-day composite adverse outcomes (aOR: 2.52, 95% CI: 1.44, 4.46, P-value = 0.004).
Also, memory-related problems showed higher odds of delirium (aOR: 5.11, 95% CI: 1.90, 13.32, P-value = 0.007), 30-day all-cause complications (aOR: 1.77, 95% CI: 1.11, 2.79, P-value = 0.044), and 30-day composite adverse outcomes (aOR: 2.02, 95% CI: 1.30, 3.14, P-value = 0.008).
A positive AD8 screen identified older surgical patients at risk of delirium and 90-day complications.
Of all AD8 items, repetition was associated with the greatest number of adverse outcomes within 30 days postoperatively, highlighting its potential preoperative utility.

Why it matters

In 689 older surgical patients, a positive AD8 dementia screen was associated with higher odds of delirium and complications after surgery, with the repetition item showing the strongest links. This supports using the AD8 before surgery to flag at-risk patients, but it does not test any treatment or cure.

Study details

Study designcohort study
Participants689
Effect sizeaOR: 2.26; aOR: 2.03; aOR: 6.11
Evidence strengthModerate

How this study scored 60/100

Published in a peer-reviewed journal, and it is a cohort study following people over time. Scored zero for randomised / blinded because the record does not state it.

Component	Points	Why
Journal tier	7 / 10	Tier 3 — peer-reviewed journal (Journal of Clinical Anesthesia)
Journal's citation record	1 / 4	Journal of Clinical Anesthesia: journal h-index 114 (OpenAlex, 2026-10-29)
Study design	7 / 12	A cohort study following 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	5 / 5	2026 — within 1 year(s) of the newest study here
Sample size	2 / 4	689 participants
Effect reported	3 / 3	Effect reported with a statistic (interval, p-value, ratio or similar)
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	1 / 7	Cited 3 times (OpenAlex, 2026-10-10)
Citations per year	1 / 5	1.5 citations a year over 2 year(s) since 2026
Impact for its field and year	4 / 6	Cited 16.9× the average for papers of its field and year (OpenAlex FWCI)
Cited by studies here	0 / 6	No other study in this library cites it
Still being cited	1 / 4	Cited 3 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record	4 / 4	Last-listed author Frances F. Chung: h-index 112 (OpenAlex, whole career)
Institution's track record	2 / 3	University of Toronto: institution h-index 1,923 (OpenAlex)
Multi-centre collaboration	2 / 3	OpenAlex lists 6 institution(s) in 1 country
Indexed in PubMed	2 / 2	Indexed in PubMed (PMID 42242113)
Free to read	2 / 2	Free to read
Total	60 / 100	—

What each of these 20 components measures, and what this score is not →

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. The record's author list ends in “et al.”, so not every author is named. Check the citation against the original before you use it.

APA 7th

Yan, E., Alhamdah, Y., Butris, N., Kapoor, P., He, D., Lovblom, L. E., et al. (2026). Using the ascertain dementia eight-item questionnaire to identify at-risk older surgical patients. Journal of Clinical Anesthesia. https://doi.org/10.1016/j.jclinane.2026.112256

Vancouver

Yan E, Alhamdah Y, Butris N, Kapoor P, He D, Lovblom LE, et al. Using the ascertain dementia eight-item questionnaire to identify at-risk older surgical patients. Journal of Clinical Anesthesia. 2026. doi:10.1016/j.jclinane.2026.112256. PMID: 42242113.

BibTeX

@article{yan2026-42242113,
  author  = {Yan, Ellene and Alhamdah, Yasmin and Butris, Nina and Kapoor, Paras and He, David and Lovblom, Leif Erik and Tartaglia, Maria Carmela and Tang‐Wai, David F. and others},
  title   = {{Using the ascertain dementia eight-item questionnaire to identify at-risk older surgical patients}},
  journal = {Journal of Clinical Anesthesia},
  year    = {2026},
  doi     = {10.1016/j.jclinane.2026.112256},
  pmid    = {42242113},
  url     = {https://doi.org/10.1016/j.jclinane.2026.112256}
}

Studies this one cites

Referenced by this study and also in the alzhub library, so you can read them here.

Related studies in Clinical safety

Also tagged “prevalence”

1,224 studies in the library carry the topic tag “prevalence”; these are this study's neighbours in a fixed, alphabetical-by-hash tour of them, not the closest in content. All 1,224 tagged studies.

Similar studies

More on Clinical safety

See all studies in Clinical safety →