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Table 1 Demographic and clinical characteristics of patients with bacteremic hospital-acquired pneumonia caused by Acinetobacter baumannii a

From: Acinetobacter baumannii nosocomial pneumonia: is the outcome more favorable in non-ventilated than ventilated patients?

Demographic or characteristic

Non-ventilator-associated (n = 48)

Ventilator-associated (n = 96)

pValue

 

n (% or IQRa)

Age in year

74 (54.8-81.8)

74 (59.0-80.0)

0.944

Gender, male

40 (83.3)

73 (76.0)

0.43

Acquired in ICU

12 (25.0)

84 (87.5)b

<0.001

ICU admission after pneumonia

19 (39.6)c

86 (89.6)

<0.001

Days of hospitalization prior to bacteremia

14.5 (3.2-3.6)

22.5 (12.0-40.8)

0.021

Comorbidity

   

  Charlson comorbidity score

3 (2.0-5.0)

3 (2.0-5.0)

0.861

  Hypertension

22 (45.8)

47 (49.0)

0.86

  Coronary artery disease

14 (29.2)

15 (15.6)

0.091

  Congestive heart failure

6 (12.5)

19 (19.8)

0.392

  Cerebral vascular disease

7 (14.6)

27 (28.1)

0.111

  COPD

12 (25.0)

27 (28.1)

0.842

  Non-COPD chronic lung disease

5 (10.4)

15 (15.6)

0.551

  Alcohol

3 (6.3)

13 (13.5)

0.302

  Liver cirrhosis

4 (8.3)

5 (5.2)

0.481

  Chronic kidney disease

15 (31.3)

32 (33.3)

0.95

  Type 2 diabetes

10 (20.8)

35 (36.5)

0.086

  Collagen vascular disease

4 (8.3)

7 (7.3)

1

  Usage of immunosuppressants

18 (37.5)

32 (33.3)

0.757

  Usage of corticosteroids

7(14.6)

23 (24.0)

0.276

  Neutropenia

4 (8.3)

7 (7.3)

1

  Malignancy

22 (45.8)

28 (29.2)

0.073

   Hematologic malignancy

7 (14.6)

6 (6.3)

0.125

   Solid malignancy

17 (35.4)

23 (24.0)

0.211

  Previous shock

8 (16.7)

27 (28.1)

0.192

  Recent surgery

8 (16.7)

34 (35.4)

0.032

  Trauma

0 (0)

4 (4.2)

0.301

Proceduresd

   

  Abdominal drain

1 (2.1)

5 (5.2)

0.658

  Arterial line

5 (10.4)

36 (37.5)

0.001

  Central venous catheter

22 (45.8)

71 (74.0)

0.002

  Pulmonary artery catheter

6 (12.5)

20 (20.8)

0.319

  Foley catheter

28 (58.3)

78 (81.3)

0.006

  Hemodialysis

4 (8.3)

10 (10.4)

0.774

  Nasogastric tube

35 (72.9)

93 (96.9)

<0.001

  Thoracic drain

0 (0)

7 (7.3)

0.095

  Total parental nutrition

1 (2.1)

8 (8.3)

0.273

  Tracheostomy

7 (14.6)

16 (16.7)

0.936

Shockd

29 (60.4)

58 (60.4)

1

APACHE II scored

24 (17.3-31.8)

27 (21.3-34.8)

0.015

Radiological features

   

  Bilateral radiologic involvement

27 (56.3)

81 (84.4)

0.001

  Pleural effusion

20 (41.7)

32 (33.3)

0.425

Appropriate antimicrobial therapy

20 (41.7)

28 (29.2)

0.189

Combination antimicrobial therapy

4 (8.3)

7 (7.3)

1

Outcome

   

  14-day mortality

21 (43.8)

30 (31.3)

0.196

  1. aData are median value (interquartile range) for continuous variables and number of cases (%) for categorical variables. IQR = interquartile range; ICU = intensive care unit; COPD = chronic obstructive pulmonary disease; APACHE = Acute Physiologic and Chronic Health Evaluation.
  2. bOther patients were cared in a respiratory care center, respiratory ward, or common ward.
  3. cTwelve acquired pneumonia in an ICU and 7 outside an ICU, all of them received mechanical ventilation after pneumonia.
  4. dAt the time the blood culture was obtained.