Case mix, outcome and activity for patients with severe acute kidney injury during the first 24 hours after admission to an adult, general critical care unit: application of predictive models from a secondary analysis of the ICNARC Case Mix Programme Database
2008

Study on Severe Acute Kidney Injury in ICU Patients

Sample size: 17326 publication Evidence: moderate

Author Information

Author(s): Nitin V Kolhe, Paul E Stevens, Alex V Crowe, Graham W Lipkin, David A Harrison

Primary Institution: Intensive Care National Audit & Research Centre (ICNARC)

Hypothesis

What is the case mix, outcome, and activity for patients with severe acute kidney injury during the first 24 hours after ICU admission?

Conclusion

Severe AKI accounts for over 9% of all bed-days in adult, general ICUs, and overall survival from AKI in the ICU remains poor.

Supporting Evidence

  • Severe AKI occurred in 6.3% of ICU admissions.
  • Oliguric AKI had higher mortality rates compared to nonoliguric AKI.
  • Patients with severe AKI accounted for 9.3% of all ICU bed-days.

Takeaway

This study looked at patients with severe kidney problems in the ICU and found that many of them don't survive, and those who do stay in the hospital for a long time.

Methodology

Data from the ICNARC Case Mix Programme Database was analyzed for severe AKI admissions defined by specific serum creatinine and urea levels.

Potential Biases

Missing data may skew results, as patients with missing values are often less severely ill.

Limitations

The study did not capture data on acute renal replacement therapy during the first 24 hours and may not generalize to milder forms of AKI.

Participant Demographics

Mean age of patients was 63.2 years, with 66.4% being male.

Statistical Information

P-Value

<0.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/cc7003

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