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Table 4 Predictor variable effects on whole-body BIS variables for determining the effect of Acticoatâ„¢

From: An objective measure for the assessment and management of fluid shifts in acute major burns

BIS variable

Covariate

Co-efficient

Confidence intervals

p value

Lower

Upper

R0 (ohms)

Acticoatâ„¢

− 17.42

− 39.35

4.52

0.12

% TBSA

− 1.07

− 2.75

0.61

0.21

Acticoatâ„¢#% TBSA

− 4.68

− 5.37

− 3.98

< 0.01*

Initial TBF (L)

− 5.71

− 8.32

− 3.09

< 0.01*

Ri (ohms)

Acticoatâ„¢

− 182.22

− 265.27

− 99.16

< 0.01*

% TBSA

6.50

− 3.45

16.46

0.20

Acticoatâ„¢#% TBSA

− 17.98

− 20.61

− 15.36

< 0.01*

Initial TBF (L)

− 32.52

− 48.16

− 16.87

< 0.01*

Rinf (ohms)

Acticoatâ„¢

− 23.87

− 38.57

− 9.17

< 0.01*

% TBSA

− 0.01

− 1.33

1.32

0.99

Acticoatâ„¢#% TBSA

− 3.96

− 4.42

− 3.49

< 0.01*

Initial TBF (L)

− 5.30

− 7.37

− 3.23

< 0.01*

ECF (L)

Acticoatâ„¢

− 36.23

− 41.91

− 30.55

< 0.01*

% TBSA

− 0.04

− 0.31

0.23

0.76

Acticoatâ„¢#% TBSA

1.86

1.68

2.04

< 0.01*

Initial TBF (L)

0.93

0.53

1.33

< 0.01*

ICF (L)

Acticoatâ„¢

− 31.00

− 36.07

− 25.92

< 0.01*

% TBSA

− 0.15

− 0.36

0.07

0.18

Acticoatâ„¢#% TBSA

2.01

1.85

2.17

< 0.01*

Initial TBF (L)

1.08

0.77

1.40

< 0.01*

TBF (L)

Acticoatâ„¢

− 67.23

− 77.13

− 57.32

< 0.01*

% TBSA

− 0.19

− 0.63

0.25

0.40

Acticoatâ„¢#% TBSA

3.87

3.55

4.18

< 0.01*

Initial TBF (L)

2.02

1.36

2.67

< 0.01*

  1. Acticoatâ„¢ is in reference to an open wound
  2. R0 resistance at zero frequency, Ri intracellular resistance, Rinf resistance at infinite frequency, ECF extracellular fluid, ICF intracellular fluid, TBF total body fluid, TBSA total body surface area, BIS bioimpedance spectroscopy
  3. *p ≤ 0.05
  4. #Interaction term