Case volume and specialization in critically ill emergency patients: a nationwide cohort study in Japanese intensive care unit (ICUs)
Authors' conclusion
Higher ICU case volumes were significantly associated with lower in-hospital mortality rates in Japanese ICUs predominantly treating critically ill emergency patients.
Study context
- Population
- Emergency patients aged ≥ 16 years in 80 Japanese ICUs (JIPAD), April 2015 to March 2021
- Participants
- 72,214 patients · 80 ICUs
- Exposure
- ICU case volume quartiles
- Outcome
- In-hospital mortality
Methodological detailsnationwide, multicentre registry, Bayesian hierarchical generalized linear mixed models
- Nationwide
- Multicentre registry
- Bayesian hierarchical generalized linear mixed models
Main finding
As reported in the abstract
In-hospital mortality, ICUs with > 75% emergency patients
Each group vs Q1Odds ratio (95% CrI)
Q2
0.92(0.88–0.96)
Q3
0.70(0.67–0.73)
Q4
0.78(0.73–0.83)
Observational data: associations, not effects.
Secondary outcomes
ICU mortality, 28-day mortality, ventilator-free days, ICU and hospital LOS
- Similar trends observed
Original publication
Case volume and specialization in critically ill emergency patients: a nationwide cohort study in Japanese ICUs. J Intensive Care. Published 17 May 2024. doi:10.
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