ICU sedation, delirium & recovery
Association between low income and intensive care unit (ICU) delirium among critically ill older patients: A retrospective cohort study in Japan
An erratum to this article was published (Anaesth Crit Care Pain Med, Apr 2026 ↗)
Main finding · ICU deliriumResult — go to the resultRisk (Cox model, adjusted for confounders) 1.20 95% CI 1.04–1.39Authors' conclusion
In a Japanese ICU, low income was found to be an independent risk factor for ICU delirium.
Study context
- Population
- Adults aged ≥70 years admitted to the ICU of St. Luke's International Hospital, Tokyo, March 2014–April 2022
- Participants
- 2,705 adults
- Exposure
- Low income vs not low income
- Low-incomen = 508
- Outcome
- ICU delirium (CAM-ICU)
- Follow-up
- During ICU stay
Methodological detailssingle-centre
- Single-centre
Main finding
ICU delirium
Risk (Cox model, adjusted for confounders)
1.20
95% CI 1.04–1.39
P = 0.014
As reported in the abstract
Observational data: associations, not effects.
Further findings
| Outcome | Risk (Cox model) (95% CI) | P value |
|---|---|---|
| ICU delirium, additionally adjusted for potential mediators | 1.17 (1.01–1.36) | P = 0.035 |
ICU delirium, overall incidence · during ICU stay
- Delirium occurred in 1055 patients
- 39.0%
Original publication
Association between low income and ICU delirium among critically ill older patients: A retrospective cohort study in Japan. Anaesth Crit Care Pain Med. Published 16 April 2025. doi:10.
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