Table 3 Univariate analysis of factors associated with mortality in patients with GNB.

Demographics

   Male

426 (52.9)

32 (50.8)

0.93 (0.58-1.49)

0.43

   Age >65 y

581 (72.2)

54 (85.7)

2.20 (1.11-4.39)

0.01

Comorbidity

   Diabetes mellitus

130 (16.2)

9 (14.3)

0.87 (0.56-2.41)

0.43

   Neoplasm

74 (9.2)

7 (11.1)

1.2 (0.57-2.57)

0.38

   Immunosuppression

31 (3.9)

6 (9.5)

2.36 (1.08-5.11)

0.046

   Liver cirrhosis

41 (5.1)

7 (11.1)

2.13 (1.02-4.41)

0.052

   Chronic renal failure

45 (5.6)

6 (9.5)

1.68 (0.76-3.71)

0.16

   Charlson index ≥3

129 (16)

21 (33.3)

2.4 (1.46-3.92)

0.001

Microorganism

   Escherichia coli

664 (82.4)

46 (73)

0.61 (0.36-1.03)

0.05

   Klebsiella spp.

48 (6.0)

5 (7.9)

1.33(0.56-3.17)

0.34

   Proteus spp.

40 (5.0)

4 (6.3)

1.27 (0.48-3.34)

0.4

   Salmonella spp.

34 (4.2)

5 (7.9)

1.84 (0.78-4.32)

0.14

   Enterobacter spp.

19 (2.4)

3 (4.8)

1.93 (0.65-5.67)

0.21

   Polymicrobial bacteremia

56 (6.9)

11 (17.5)

2.56 (1.4-4.64)

0.006

Adequate empirical treatment

610 (83.7)

38 (70.4)

0.5 (0.28-0.86)

0.014

Origin of infection

   Urinary

466 (58.3)

18 (29.0)

0.32 (0.19-0.54)

<0.0001

   Biliary

147 (18.4)

10 (16.1)

0.86 (0.45-1.66)

0.4

   Unknown

101 (12.6)

15 (24.2)

2.05 (1.19-3.54)

0.013

   Intra-abdominal

32 (4.09

5 (8.1)

1.95 (0.83-4.58)

0.12

   Pneumonia

10 (1.3)

6 (9.7)

5.66 (2.86-11.18)

<0.001

Presentation

   Septic Shock

4 (0.5)

5 (7.9)

8.24 (4.37-15.54)

<0.0001