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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.