Skip to main content

Table 3 Statistical analysis—univariate analysis

From: Systematic overdosing of oxa- and cloxacillin in severe infections treated in ICU: risk factors and side effects

 

Trough concentration ≤50

Trough concentration >50 mg/L

OR

IC 95%

p value

n = 10

n = 52

 

Age

59.5 [53; 67]

63 [54; 72]

1.026

[0.98; 1.08]

0.29

BMI

26.1 [22.8; 29.1]

28.4 [24.6; 32.8]

1.110

[0.96; 1.29]

0.17

Indication for ICU admission

 Sepsis

4 (40)

34 (65.4)

2.833

[0.71; 11.35]

0.14

Creatinine base level

91 [70; 96]

94 [75; 120]

1.001

[1; 1.01]

0.69

Hemodialysis dependence

1 (10)

7 (13.5)

1.400

[0.15; 12.81]

0.77

SAPS II

52 [36; 73]

56 [40; 71]

1.002

[0.97; 1.04]

0.92

SOFA score on Day 0

7 [4, 10]

9 [6, 11]

1.151

[0.93; 1.42]

0.20

SOFA score on Day 0 without renal failure

7 [3, 9]

7 [5, 8]

1.068

[0.86; 1.33]

0.55

Type of infection

 Infective endocarditis

2 (20)

31 (59.6)

8.611

[1.42; 52.09]

0.02

 Other intravascular infection

3 (30)

12 (23.1)

2.222

[0.42; 11.83]

0.35

 Other infection

5 (50)

9 (17.3)

1.000

 

0.06

Bacteremia

7 (70)

49 (94.2)

7.001

[1.17; 41.75]

0.03

Daily dosing per kg, mg/kg

101.3 [75.9; 111.1]

108.1 [75; 150]

1.007

[0.99; 1.02]

0.43

Time lag between treatment initiation and D-Day, d, median [IQR]

5 [3, 7]

6.5 [4; 12.5]

1.099

[0.95; 1.27]

0.19

SOFA on D-Day

7 [4, 8]

9 [6, 14]

1.256

[1.01; 1.56]

0.04

SOFA on D-Day without renal failure

5 [3, 7]

6.5 [4, 10]

1.140

[0.93; 1.4]

0.22

SOFA > 7 on D-Day without renal failure

2 (20)

23 (44.2)

3.172

[0.61; 16.41]

0.17

Creatinine clearance on D-Day, mL/min

 <10 or RRT

2 (20)

35 (67.3)

11.136

[2.01; 61.65]

<0.01

 10–30

1 (10)

6 (11.5)

3.818

[0.38; 38.83]

0.26

 >30

7 (70)

11 (21.2)

1.000

 

0.02

Aminoglycosides

4 (40)

27 (51.9)

1.620

[0.41; 6.42]

0.49

Serum protein level on D-Day, g/L

  

0.944

[0.88; 1.01]

0.11