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. 2013 Jul 12;17(4):R139. doi: 10.1186/cc12818

Table 1.

Linear mixed models for renal blood flow (RBF) and cerebral blood flow (CBF).

RBF Coefficient 95% confidence interval P
Fixed effects
MAP (mmHg) 0.05 0.01; 0.15 <0.001
NE infusion -0.90 -1.24; -0.57 <0.001
Sepsis -0.26 -0.72; 0.2 0.3
Interaction MAP×T100 mmHga -0.01 -0.01; -0.001 0.001
Random effects
Interindividual standard deviation 0.78 0.61; 0.98
Intraindividual standard deviation
 Control 1.45 1.27; 1.7 <0.0001a
 Sepsis 0.9 0.81; 1
 NE infusion 0.53 0.46; 0.6
 NE+Sepsis 0.39 0.35; 0.44

CBF Coefficient 95% confidence interval P

Fixed effects
MAP (mmHg) 0.02 0.02; 0.03 <0.001
NE infusion 1.83 1.24; 2.40 <0.001
Sepsis 0.76 0.15; 1.37 0.01
Interaction MAP × NEc -0.02 -0.02; -0.01 <0.001
Interaction MAP×T100 mmHga 0.013 0.01; 0.002 <0.001
Random effects
Interindividual standard deviation 0.99 0.77; 1.27
Intraindividual standard deviation
 Control 1.01 0.88; 1.16 <0.001a
 Sepsis 0.91 0.8; 1.03
 NE infusion 0.38 0.33; 0.43
 NE+Sepsis 0.62 0.55 ; 0.7

aInteraction MAP × threshold 100 mmHg.

bFor between-groups comparison.

cInteraction MAP × NE infusion.

MAP: mean arterial pressure; NE: norepinephrine.