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Table 2 Univariable analysis of risk factors for multiresistant Acetinobacter baumannii acquisition during ICU hospitalization

From: The importance of colonization pressure in multiresistant Acinetobacter baumannii acquisition in a Greek intensive care unit

Variable

  

Univariable analysis

 
 

Patients with A. Baumannii acquisition (n = 32)

Patients without A. baumannii acquisition ( n = 172)

OR (95% CI)

P value

Age, median [IQR]

51 (32-69)

63 (40.25-72)

0.98 (0.97-1.003)

0.10

Males n (%)

24 (75)

108 (63)

1.78 (0.75-4.19)

0.19

APACHE II, median [IQR]

17 (13-22)

17 (13-22.75)

0.98 (0.93-1.03)

0.39

SAPS II, median [IQR]

40 (27.2-52)

41 (29-53)

0.99 (0.97-1.01)

0.31

ODIN, median [IQR]

2 (1.25-3)

2 (1-3)

1.03 (0.76-1.38)

0.86

Mc Cabe n (%)

    

0-1

25 (75)

109 (63)

2.06 (0.85-5.05)

0.11

2-3

7 (25)

63 (37)

  

Reason for ICU admission n (%)

    

Medical reason for ICU admission

28 (88)

110 (64)

3.85 (1.29-11.48)

0.016

Surgery before ICU admission

4 (12)

62 (36)

  

Trauma

11 (34)

33 (19)

2.2 (0.97-5.02)

0.06

Infection at ICU admission

6 (19)

23 (20)

1.49 (0.57-4.02)

0.43

Main reason for ICU admission n (%)

    

Other

6 (18.7)

42 (24.4)

  

Acute respiratory failure

9 (28)

46 (27)

0.73 (0.24-2.22)

0.58

Neurologic disorder

15 (47)

66 (38)

0.63 (0.22-1.75)

0.37

Hemodynamic disorder

2 (6)

18 (15)

1.28 (0.23-6.99)

0.77

ICU days before acquisition, median [IQR]

11.5 (9-18.75)

5 (3-10)

1.03 (1.01-1.06)

0.025

Antibiotic use before acquisition n (%)

32 (100)

127 (74)

10.98 (1.46-82.8)

0.02

Days of antibiotics median [IQR]

7 (5-9.75)

3 (0-5)

1.28 (1.15-1.42)

< 0.001

Mechanical ventilation before acquisition n (%)

32 (100)

152 (88)

4.08 (0.53-31.5)

0.18

Days of mechanical ventilation, median [IQR]

11.5 (8.25-16)

4 (2-8)

1.09 (1.05-1.14)

< 0.001

CVC in the ICU before acquisition n (%)

26 (81)

152 (88)

0.57 (0.209-1.554)

0.27

Days of CVC, median [IQR]

12 (9-15.7)

6 (3-10)

1.07 (1.03-1.12)

0.001

Propofol use before acquisition n (%)

12 (38)

131 (76)

0.19 (0.09-0.42)

< 0.001

Days of propofol, median [IQR]

5 (3.75-7)

2 (1-3)

1.20 (1.07-1.36)

0.003

Arterial catheter before acquisition n (%)

20 (63)

154 (89.5)

2.06 (0.95-4.69)

0.07

Days of arterial catheter, median [IQR]

11 (8-14.7)

6 (3-9)

1.07 (1.02-1.13)

0.003

Enteral feeding catheter before acquisition n (%)

31 (97)

155 (90)

1.48 (0.64-3.39)

0.36

Days of enteral feeding tube, median [IQR]

12 (9.2-19)

4 (3-9)

1.07 (1.04-1.10)

< 0.001

Urinary catheter before acquisition n (%)

32 (100)

165 (96)

2.53 (0.32-20.08)

0.38

Days of urinary tract catheterization, median [IQR]

12.5 (9-18.25)

6 (3-11)

1.07 (1.04-1.10)

< 0.001

  1. APACHE II, Acute Physiologic And Chronic Health Evaluation; CI, confidence interval; CVC, central venous catheter; ICU, intensive care unit; IQR, interquartile range; ODIN, Organ Dysfunctions and/or Infection; OR, odds ratio; other, postsurgery follow-up, trauma, cancer, and immunodeficiency; SAPS II, Simplified Acute Physiology Score II.