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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.