Fluid overload is associated with an increased risk for 90-day mortality in critically ill patients with renal replacement therapy: data from the prospective FINNAKI study

Table 4 Factors associated with 90-day mortality in logistic regression

	Odds ratio (95% confidence interval)	P value
SAPS II score without age points/point	1.048 (1.024-1.074)	< 0.001
Age (years)/year	1.046 (1.019-1.074)	0.001
Non-renal SOFA score^c/point	1.218 (1.075-1.380)	0.002
Presence of fluid overload	2.626 (1.301-5.299)	0.007

^aOnly variables with a P < 0.01 are presented in the table. Non-significant variables: time from ICU admission to RRT initiation, initial RRT modality, urine output on the day of RRT initiation, colloid use prior to RRT initiation, presence of severe sepsis, lactate, base excess, and plasma creatinine at RRT initiation, ^bnumber of patients included in the last step of the model 277, ^c on day of renal replacement therapy initiation. SAPS, Simplified Acute Physiology Score; SOFA, Sequential Organ Failure Assessment.

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