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Table 1 Demographic and clinical characteristics of patients with bacteremia caused by carbapenem resistant Acinetobacter baumannii and carbapenem resistant Acinetobacter nosocomialis*

From: Comparison between bacteremia caused by carbapenem resistant Acinetobacter baumannii and Acinetobacter nosocomialis

Demographic or characteristic A. baumannii(n=71) A. nosocomialis(n=64) pvalue
  n (% or interquartile range)  
Age in years 75(61.0–82.0) 76(62.0–81.0) 0.78
Gender, male 54(76.1) 46(71.9) 0.7
Acquired in ICU 60(84.5) 54(84.4) 1
Days of hospitalization prior to culture 22.5(9.5–39.5) 25(8.0–34.0) 0.26
Source    
  Respiratory tract 47(66.2) 45(70.3) 0.71
  Intravenous device 4(5.6) 7(10.9) 0.35
  Intra-abdomen 6(8.5) 3(4.7) 0.5
  Wound 2(2.8) 1(1.6) 1
  Primary bacteremia 12(16.9) 8(12.5) 0.32
Comorbidity    
  Coronary artery disease 7(9.9) 11(17.2) 0.31
  Congestive heart failure 5(7.0) 11(15.6) 0.11
  Cerebral vascular disease 13(18.3) 17(26.6) 0.3
  Hypertension 22(31.0) 25(39.1) 0.37
  COPD 14(19.7) 20(31.2) 0.17
  Alcoholism 7(9.9) 1(1.6) 0.07
  Liver cirrhosis 3(4.2) 3(4.7) 1
  Diabetes mellitus 20(28.2) 22(34.4) 0.46
  Collagen vascular disease 4(5.6) 4(6.2) 1
  Usage of immunosuppressants 23(32.4) 15(23.4) 0.26
  Neutropenia 2(2.8) 1(1.6) 1
  Malignancy 27(38.0) 24(37.5) 1
    Hematologic malignancy 9(12.7) 1(1.6) 0.019
    Solid malignancy 20(28.2) 23(35.9) 0.36
  Recent surgery 26(36.6) 29(45.3) 0.38
  Trauma 2(2.8) 2(3.1) 1
Procedure†    
  Abdominal drain 7(9.9) 9(14.1) 0.6
  Central venous catheter 49(69.0) 47(73.4) 0.7
  Foley catheter 53(74.6) 44(48.8) 0.57
  Hemodialysis 9(12.7) 8(12.5) 1
  Thoracic drain 1(1.4) 4(6.2) 0.19
  Total parental nutrition 9(12.7) 7(10.9) 0.8
  Endotracheal tube or tracheostomy 53(74.6) 53(82.8) 0.3
  Ventilator 49(69.0) 45(70.3) 1
  Arterial line 22(31.0) 12(18.8) 0.12
  Nasogastric tube 61(85.9) 51(79.7) 0.37
APACHE II score† 26(19.0–34.0) 26(18.3–31.8) 0.1
Shock 29(40.8) 10(15.6) 0.003
Appropriate antimicrobial therapy 9(12.7) 22(34.4) 0.004
Mortality 43(60.6) 21(32.8) 0.002
 14-day mortality 29(40.8) 9(14.1) 0.001
 28-day mortality 34(47.9) 13(20.3) 0.001
 Time to mortality, day 7(2.0–26.0) 21(9.5–68.5) 0.022
  1. *Data are median value (interquartile range) for continuous variables and number of cases (%) for categorical variables. †Within 24 hours prior to bacteremia onset. APACHE II Acute Physiologic and Chronic Health Evaluation II, COPD chronic obstructive pulmonary disease, ICU intensive care units.
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BMC Infectious Diseases

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