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Table 2 Patient characteristics: analysis B: cases and propensity matched controls infected with SGNB (controls B)

From: The costs of nosocomial resistant gram negative intensive care unit infections among patients with the systemic inflammatory response syndrome- a propensity matched case control study

 

Cases (n = 49)

Controls B (n = 49)

p value

Gender

  

0.83

Male

32 (65.3%)

31 (63.3%)

 

Female

17 (34.7%)

18 (36.7%)

 

Intensive care unit (ICU)

  

0.61

Medical ICU

26 (53.1%)

22 (47.8%)

 

Surgical ICU

23 (46.9%)

24 (52.2%)

 

Admission to the ICU

  

0.54

Direct admission

27 (55.1%)

24 (48.9%)

 

Transfer from the ward

22 (44.9%)

25 (51.1%)

 

Diabetes

15 (30.6%)

13 (26.5%)

0.66

Renal impairment

9 (18.4%)

13 (26.5%)

0.33

Cerebrovascular accident

5 (10.2%)

12 (24.5%)

0.11

Peptic ulcer disease

3 (6.1%)

1 (2.1%)

0.62

Myocardial infarction

8 (16.3%)

9 (18.4%)

0.79

Congestive cardiac failure

3 (6.1%)

0 (0%)

0.24

Liver disease

2 (4.1%)

1 (2.1%)

1

Malignancy

4 (8.2%)

0 (0%)

0.12

Central venous catheter

45 (91.8%)

45 (91.8%)

1

Endotracheal intubation

49 (100%)

47 (95.9%)

0.49

Mean days of duration of mechanical ventilation (SD)

7.9 (SD6.8)

7.6 (SD2.9)

0.80

Prior SGNB** infection or colonization in the past 6 months

3 (6.1%)

0 (0%)

0.24

Prior Carbapenems in the past 6 months

23 (46.9%)

23 (46.9%)

1

Prior 3rd generation Cephalosporins in the past 6 months

25 (51.1%)

15 (30.6%)

0.05

Surgery prior to RGNB*** infection

23 (46.9%)

27 (55.1%)

0.42

Stay in ICU for more than 5 days

38 (77.6%)

37 (75.5%)

0.81

Mortality

28 (57.1%)

15 (30.6%)

0.008

Mean age (SD)

59.5 (SD18.2)

57.1 (SD16.4)

0.5

Mean APACHEII (SD)

20.4 (SD7.2)

20.6 (SD5.8)

0.88

Mean age adjusted Charlson score (SD)

3.5 (SD3.1)

3.2 (SD2.7)

0.62

Median PreICU stay (range)

0 (0–25)

1 (0–32)

0.21

Mean propensity scores (SD)

0.58 (SD0.24)

0.58 (SD0.24)

0.99

  1. **Sensitive Gram Negative Bacilli ***Resistant Gram Negative Bacilli.