Table 1: Multivariate regression analysis of independent predictors of extraction ratio.

Variables

OR

95% CI

P-value

Age

Frequency of dialysis

Frequency of erythropoietin

Predialysis diastolic BP

Predialysis albumin

Predialysis hematocrit

Predialysis Creatinine

Predialysis bicarbonate

Dialysis duration

Blood flow rate

Kt/V

2.08

3.83

2.49

2.08

4.87

3.03

4.74

4.99

3.93

3.14

6.56

1.56-3.94

1.97-5.86

1.77-5.06

2.25-4.22

0.34-5.47

2.67-4.79

1.83-6.36

2.57-7.83

1.45-5.95

1.73-3.41

2.53-7.27

0.05

0.03

0.05

0.05

< 0.001

0.05

0.001

< 0.001

0.001

0.02

< 0.001

OR: Odds Ratio; CI: Confidence Interval; BP: Blood Pressure.