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Table 2 Pathogens stratified by temperature, CRP and SIRS at arrival to the MED

From: How do bacteraemic patients present to the emergency department and what is the diagnostic validity of the clinical parameters; temperature, C-reactive protein and systemic inflammatory response syndrome?

 

Non-febrile n = 130 (%)

Febrile n = 251 (%)

CRP < 100 n = 134 (%)

CRP ≥ 100 n = 277 (%)

No SIRS n = 117 (%)

SIRS n = 301 (%)

Escherichia coli

39 (30.0)

78 (31.1)

36 (26.9)

88 (31.8)

32 (27.3)

95 (31.6)

Klebsiella species

9 (6.9)

14 (5.6)

9 (6.7)

16 (5.8)

4 (3.4)

21 (7.0)

Salmonella species

0 (0.0)

5 (2.0)

4 (3.0)

2 (0.7)

1 (0.8)

5 (1.7)

Other Enterobacteriaceae

3 (2.3)

11 (4.4)

6 (4.5)

10 (3.6)

6 (5.1)

11 (3.7)

Anaerobic Gram-negative rods

7 (5.4)

4 (1.6)

2 (1.5)

9 (3.2)

4 (3.4)

6 (2.0)

Neisseria meningitidis

2 (1.5)

1 (0.4)

1 (0.7)

2 (0.7)

1 (0.8)

2 (0.7)

Other Gram-negative

11 (8.5)

11 (4.4)

9 (6.7)

13 (4.7)

6 (5.1)

16 (5.3)

Staphylococcus aureus

19 (14.6)

21 (8.4)

11 (8.2)

32 (11.5)

13 (11.2)

30 (10.0)

Coagulase-negative staphylococci

7 (5.3)

11 (4.4)

15 (11.2)

9 (3.2)

14 (12.0)

10 (3.3)

Enterococcus species

4 (3.1)

7 (2.8)

7 (5.2)

7 (2.5)

8 (6.8)

10 (3.3)

Hemolytic streptococci

4 (3.1)

18 (7.2)

10 (7.5)

13 (4.7)

3 (2.6)

20 (6.6)

Non-hemolytic streptococci

4 (3.1)

7 (2.8)

7 (5.2)

5 (1.8)

6 (5.1)

4 (1.2)

Streptococcus pneumoniae

13 (10.0)

38 (15.1)

6 (4.5)

46 (16.6)

10 (8.7)

44 (14.6)

Gram-positive rods

2 (1.5)

3 (1.2)

2 (1.5)

4 (1.4)

3 (2.6)

3 (1.0)

Polymicrobial

6 (4.6)

22 (8.8)

9 (6.7)

21 (7.6)

6 (5.1)

24 (8.0)

Chi Squared Test

 

<0.001

 

<0.001

 

<0.001

  1. Microorganisms detected in 418 positive blood cultures defining true community-acquired bacteraemia, obtained within two days after admission in the Medical Emergency Department. “Febrile” represents patients arriving with a temperature >38.0°C, whereas”non-febrile” represents patients arriving with a temperature between 36.0°–38.0°C. The hypothesis of equal proportions was tested using the chi-squared test for the non-febrile and the febrile patients, the patients with a CRP < 100 and CRP ≥ 100, and finally for the patients with and without SIRS. The percent is presented vertically.