Research Article

Does the RIFLE Classification Improve Prognostic Value of the APACHE II Score in Critically Ill Patients?

Table 3

The Impact of the RIFLE classification criterion in ICU mortality, adjusted for APACHE II score.

Variable OR df IC 95% P value

APACHE II 1.66 1 1.22–2.27 0.001
RIFLE 24 h 1.07 1 1.00–1.13 0.026
APACHE II in RIFLE-1 1.04 1 0.98–1.10 0.168
RIFLE-1 2.17 1 1.50–3.14 0.001

OR: Oddis Ration (Odd Ratio); df: degrees of freedom; CI: Confidence Interval; APACHE II: Acute Physiology and Chronic Health Evaluation version II; RIFLE 24 h: RIFLE-Risk, Injury, Failure, Loss, End defined in 24 hours of ICU stay; RIFLE-1 Risk, Injury, Failure, Loss, End set on the day of AKI during their ICU stay.