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Open Access 01-06-2007 | Research

Changes in the incidence and outcome for early acute kidney injury in a cohort of Australian intensive care units

Authors: Sean M Bagshaw, Carol George, Rinaldo Bellomo, the ANZICS Database Management Committee

Published in: Critical Care | Issue 3/2007

Abstract

Introduction

There is limited information on whether the incidence of acute kidney injury (AKI) in critically ill patients has changed over time and there is controversy on whether its outcome has improved.

Methods

We interrogated the Australian New Zealand Intensive Care Society Adult Patient Database to obtain data on all adult admissions to 20 Australian intensive care units (ICUs) for ≥ 24 hours from 1 January 1996 to 31 December 2005. Trends in incidence and mortality for ICU admissions associated with early AKI were assessed.

Results

There were 91,254 patient admissions to the 20 study ICUs, with 4,754 cases of AKI, for an estimated crude cumulative incidence of 5.2% (95% confidence interval, 5.1 to 5.4). The incidence of AKI increased during the study period, with an estimated annual increment of 2.8% (95% confidence interval, 1.0 to 5.6, P = 0.04). The crude hospital mortality was significantly higher for patients with AKI than those without (42.7% versus 13.4%; odds ratio, 4.8; 95% confidence interval, 4.5 to 5.1; P < 0.0001). There was also a decrease in AKI crude mortality (annual percentage change, -3.4%; 95% confidence interval, -4.7 to -2.12; P < 0.001), however, which was not seen in patients without AKI. After covariate adjustment, AKI remained associated with a higher mortality (odds ratio, 1.23; 95% confidence interval, 1.14 to 1.32; P < 0.001) and there was a declining trend in the odds ratio for hospital mortality.

Conclusion

Over the past decade, in a large cohort of critically ill patients admitted to 20 Australian ICUs, there has been a significant rise in the incidence of early AKI while the mortality associated with AKI has declined.

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Title: Changes in the incidence and outcome for early acute kidney injury in a cohort of Australian intensive care units
Authors: Sean M Bagshaw
Carol George
Rinaldo Bellomo
the ANZICS Database Management Committee
Publication date: 01-06-2007
Publisher: BioMed Central
Published in: Critical Care / Issue 3/2007
Electronic ISSN: 1364-8535
DOI: https://doi.org/10.1186/cc5949

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Changes in the incidence and outcome for early acute kidney injury in a cohort of Australian intensive care units

Abstract

Introduction

Methods

Results

Conclusion

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Introduction

Methods

Results

Conclusion

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