Cardiac arrest & resuscitation
Mortality Trends Across Key Diagnostic Groups in Australian and New Zealand ICUs Over the Past 30 Years
Authors' conclusion
There have been substantial improvements in risk-adjusted mortality among ICU patients over the past 30 years; however, this improvement has plateaued recently.
Study context
- Population
- Adults (≥ 16 yr) admitted to Australian and New Zealand ICUs contributing to the And New Zealand Intensive Care Society (ANZICS) Adult Patient Database (APD), January 1993 to December 2022
- Participants
- 2,838,654 adults · 209 ICUs
- Exposure
- Risk-adjusted mortality across study decades by diagnostic group
- Outcome
- Risk-adjusted mortality
Methodological detailsbinational registry (ANZICS APD)
- Binational registry (ANZICS APD)
Main finding
As reported in the abstract
Third decade vs First decadeOdds ratio (CI)
Cardiac arrest (greatest improvement)
0.82(0.81–0.83)
Pneumonia (least improvement)
0.87(0.87–0.88)
Observational data: associations, not effects.
Further findings
Age
At least one major comorbidity
| Outcome | First decade | Final decade |
|---|---|---|
| APACHE III score | 45.6 (SD 28.1) | 50.9 (SD 24.1) |
Diagnostic groups with highest mortality rates
- Cardiac arrest
- 53.6%
- Stroke and intracranial hemorrhage
- 34.8%
- Subarachnoid hemorrhage
- 21.2%
- Pneumonia
- 19.2%
- Sepsis
- 19%
Parts of this Brief are withheld: the automatic checks could not confirm them against the abstract.
Original publication
Mortality Trends Across Key Diagnostic Groups in Australian and New Zealand ICUs Over the Past 30 Years. Crit Care Med. Published 14 August 2025. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →