Table 1

Predisposing factors and underlying diseases of bacteraemia

Predisposing factor

All patients

S. aureus

Str. pneumoniae

β-haemolytic streptococci

E. coli

p-value

N = 149

N = 41

N = 42

N = 23

N = 43

n (%)

n (%)

n (%)

n (%)

n (%)


Obesitya

27 (23.7)

9 (25.7)

4 (16.7)

6 (31.6)

8 (22.2)

0.698

Current smoker or ex-smokerb

66 (48.5)

18 (48.6)

26 (65.0)

11 (57.9)

11 (27.5)

0.007

Alcohol abuse

24 (16.1)

5 (12.2)

9 (21.4)

6 (26.1)

4 (9.3)

0.211

Type 1 diabetes

5 (3.4)

1 (2.4)

-

-

4 (9.3)

0.1

Type 2 diabetes

29 (19.5)

9 (22.0)

5 (11.9)

4 (17.4)

11 (25.6)

0.426

COPD

8 (5.4)

-

5 (11.9)

2 (8.7)

1 (2.3)

0.053

Haematological malignancy

11 (7.4)

2 (4.9)

3 (7.1)

1 (4.3)

5 (11.6)

0.723

Solid malignancy

15 (10.1)

6 (14.6)

3 (7.1)

1 (4.3)

5 (11.6)

0.589

Rheumatoid arthritis

7 (4.7)

5 (12.2)

-

1 (4.3)

1 (2.3)

0.034

Liver cirrhosis

4 (2.7)

2 (4.9)

-

1 (4.3)

1 (2.3)

0.511

Cardiac diseasec

44 (29.5)

14 (34.1)

10 (23.8)

6 (26.1)

14 (32.6)

0.705

McCabe II or IIId

24 (16.1)

8 (19.5)

5 (11.9)

2 (8.7)

9 (20.9)

0.462

Corticosteroid treatmente

18 (12.1)

6 (14.6)

4 (9.5)

2 (8.7)

6 (14.0)

0.857

Chronic diseasef

117 (78.5)

33 (80.5)

27 (64.3)

17 (73.9)

40 (93.0)

0.013

Age >60 years

78 (52.3)

21 (51.2)

20 (47.6)

10 (43.5)

27 (62.8)

0.391

Male sex

79 (53.0)

28 (68.3)

24 (57.1)

14 (60.9)

13 (30.2)

0.003

Nosocomial infection

30 (20.1)

16 (39.0)

4 (9.5)

3 (13.0)

7 (16.3)

0.004


a(BMI >30), data available from 114 patients

bData available from 136 patients

cCoronary artery disease, valvular disease or documented heart failure

dMcCabe class II or III: ultimately fatal or rapidly fatal disease

eCorticosteroids used in a dose of over 5 mg per day during one month prior to the episode of bacteraemia

fAt least one chronic disease

Huttunen et al. BMC Infectious Diseases 2007 7:13   doi:10.1186/1471-2334-7-13

Open Data