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42/100

✓ Peer-reviewed alzhub usefulness score 42 out of 100. Clinical safety

Topic: Risk, prevention and care in population studies

POD occurred in 43 patients (4.1%). Affected patients were older, in poorer preoperative health, and had longer anaesthesia and surgery times. Univariate analysis showed associations between POD and age, American society of Anesthesiologists-Physical Status (ASA-PS), dementia, surgery duration, and intraoperative tracheostomy. Multivariate analysis identified age, ASA-PS, surgical site, anaesthesia time, and tracheostomy as independent predictors. Prolonged anaesthesia was found to be a modifiable risk factor for POD. Identifying at-risk patients and minimising anaesthesia time may help reduce POD incidence. Persistent delirium beyond 72 hours postoperatively warrants further evaluation.

Cite this study APA, Vancouver, BibTeX · download .bib or .ris

APA 7th

Kamata, K., & Hagihira, S. (2025). Incidence and perioperative risk factors for postoperative delirium in the intensive care unit among adult surgical patients – Retrospective cohort study. Indian Journal of Anaesthesia. https://doi.org/10.4103/ija.ija_377_25

Vancouver

Kamata K, Hagihira S. Incidence and perioperative risk factors for postoperative delirium in the intensive care unit among adult surgical patients – Retrospective cohort study. Indian Journal of Anaesthesia. 2025. doi:10.4103/ija.ija_377_25. PMID: 40880963.

BibTeX

@article{kamata2025-40880963,
  author  = {Kamata, Kotoe and Hagihira, Satoshi},
  title   = {{Incidence and perioperative risk factors for postoperative delirium in the intensive care unit among adult surgical patients – Retrospective cohort study}},
  journal = {Indian Journal of Anaesthesia},
  year    = {2025},
  doi     = {10.4103/ija.ija_377_25},
  pmid    = {40880963},
  url     = {https://doi.org/10.4103/ija.ija_377_25}
}

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Key findings

Affected patients were older, in poorer preoperative health, and had longer anaesthesia and surgery times.
Univariate analysis showed associations between POD and age, American society of Anesthesiologists-Physical Status (ASA-PS), dementia, surgery duration, and intraoperative tracheostomy.
Multivariate analysis identified age, ASA-PS, surgical site, anaesthesia time, and tracheostomy as independent predictors.
Prolonged anaesthesia was found to be a modifiable risk factor for POD.
Identifying at-risk patients and minimising anaesthesia time may help reduce POD incidence.

Why it matters

This retrospective cohort found that postoperative delirium occurred in 4.1% of adult surgical patients and that prolonged anaesthesia was a modifiable risk factor, with dementia associated with delirium on univariate analysis. It is about preventing delirium after surgery, not about treating, curing or preventing Alzheimer's disease.

Study details

Participants43
Effect size4.1%
Evidence strengthLow

How this study scored 42/100

Published in a peer-reviewed journal. Scored zero for study design 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 40 of the 96 points we could judge it on, which is 42 out of 100.

Component	Points	Why
Journal tier	7 / 10	Tier 3 — peer-reviewed journal (Indian Journal of Anaesthesia)
Journal's citation record	0 / 4	Indian Journal of Anaesthesia: journal h-index 72 (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	1 / 4	43 participants
Effect reported	2 / 3	Effect reported as a number, without an interval or test
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 4 times (OpenAlex, 2026-10-10)
Citations per year	1 / 5	1.3 citations a year over 3 year(s) since 2025
Impact for its field and year	3 / 6	Cited 3.1× 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 4 times in 2024–2026 (2026 still in progress; OpenAlex)
Senior author's track record	— / 4	Senior author's record not available — left out of this score
Institution's track record	1 / 3	Tohoku University: institution h-index 880 (OpenAlex)
Multi-centre collaboration	1 / 3	OpenAlex lists 2 institution(s) in 1 country
Indexed in PubMed	2 / 2	Indexed in PubMed (PMID 40880963)
Free to read	2 / 2	Free to read
Points	40 / 96	Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 40 of the 96 points we could judge it on is 42 out of 100.
Total	42 / 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).

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