Table 4 Cox’s proportional risk analysis of risk of hemofilter clotting.

From: Citrate anticoagulation and systemic heparin anticoagulation during continuous renal replacement therapy among critically-ill children

Half-life of hemofilters

Variables

Hazard ratio

Standard error

p-value

95% Confidence Interval

Femoral vein catheter

1.627

0.344

0.158

0.828–3.195

Weight < 10 kg

1.062

0.600

0.920

0.328–3.444

Filter size 60 m2

5.017

0.919

0.079

0.829–30.380

Filter size 93 m2

5.045

0.822

0.059

1.007–25.268

Pump flow rate < 100

0.346

0.838

0.205

0.067–1.787

Heparin anticoagulation

3.300

0.385

0.002

1.570–7.098