Table 1 Baseline characteristics of 28-day survivors and non-survivors

Age (years), mean (SD)

60.3 (17.5)

63.2 (17.8)

0.50

Sex (male), n (%)

38 (65.5)

13 (52.0)

0.24

APACHE II^a, mean (SD)

18.2 (5.0)

22.6 (5.8)

<0.001

SOFA score^a, mean (SD)

6.9 (2.4)

8.6 (3.2)

0.009

ICU type, n (%)

0.72

 Medical

30 (51.7)

14 (56.0)

 Surgical

28 (48.3)

11 (44.0)

Source of infection, n (%)

0.94

 Lung

22 (37.9)

9 (36.0)

 Abdomen

11 (19.0)

5 (20.0)

 Urinary tract

8 (13.8)

5 (20.0)

 Bone or soft tissue

7 (12.1)

1 (4.0)

 Central line

3 (5.2)

1 (4.0)

 Endocarditis

2 (3.5)

1 (4.0)

 Undetermined

5 (8.6)

3 (12.0)

Culture positive, n (%)

35 (60.3)

14 (56.0)

0.71

Organism, n (%)

0.88

 Gram-negative

14 (24.1)

7 (28.0)

 Gram-positive

10 (17.2)

3 (12.0)

 Mixed

7 (12.1)

2 (8.0)

 Fungal

1 (1.7)

1 (4.0)

 Viral

3 (5.2)

1 (4.0)

 Coronary artery disease

15 (25.9)

6 (24.0)

0.55

 Cerebrovascular disease

9 (15.5)

1 (4.0)

0.13

 Congestive heart failure

16 (27.6)

8 (32.0)

0.79

 Diabetes

21 (36.2)

3 (12.0)

0.034

 Chronic renal insufficiency

14 (24.1)

4 (16.0)

0.56

 Liver disease

4 (6.9)

3 (12.0)

0.42

 COPD

14 (24.1)

2 (8.0)

0.13