Table 4 Procalcitonin values associated with different pathogens
Pathogen species detected from blood cultures | Number | PCT (IQR) | p value |
|---|---|---|---|
Staphylococcus spp. | 574 | 5.6 (1.9–17.7) | 0.015 |
 Staphylococcus aureus, methicillin sensitive | 272 | 7.2 (2.7–20.7) |  |
 Staphylococcus aureus, methicillin resistant | 58 | 4.7 (1.4–10.6) |  |
 Coagulase-negative Staphylococci, methicillin sensitive | 151 | 5.2 (1.4–16.1) |  |
 Coagulase-negative Staphylococci, methicillin resistant | 65 | 3.8 (1.3–12.8) |  |
Streptococcus spp. | 153 | 18.2 (6.2–44.1) | 0.12 |
 Streptococci, Group A, B, C or G | 59 | 18.2 (8.4–47.3) |  |
 Streptococcus pneumoniae | 63 | 21.6 (7–48.3) |  |
 Other Streptococci (Streptococcus mutans, other viridans Streptococci) | 26 | 6.8 (3.6–44.1) |  |
Enterococcus spp. | 128 | 6.8 (2.2–27.8) | 0.5 |
 Enterococcus faecalis | 41 | 8.7 (2.1–54) |  |
 Enterococcus faecium | 71 | 6.7 (2.3–25.3) |  |
 Vancomycin-resistant Enterococci | 7 | 1.9 (0.5–99.3) |  |
Escherichia coli | 436 | 26.8 (9.8–70) |  |
Enterobacteriaceae other than E. coli | 249 | 24.9 (7.6–57.1) | 0.07 |
 Enterobacter spp. | 38 | 21.1 (7.6–56.8) |  |
 Klebsiella spp. | 123 | 21.5 (6–49.7) |  |
 Proteus spp. | 47 | 46.8 (9.1–97.6) |  |
 Serratia spp. | 20 | 12.1 (6.5–42.4) |  |
 Citrobacter spp. | 9 | 37.8 (15.1–113.1) |  |
 Enterobacteriaceae, other | 2 | 3.7 (2.4–5) |  |
Pseudomonas spp. | 35 | 5.9 (2.1–28.4) | 0.4 |
 Pseudomonas aeruginosa | 32 | 6.1 (3.1–30.6) |  |
 Pseudomonas, other | 3 | 2.0 (0.6–28.4) |  |
Candida spp. | 68 | 4.7 (2–14) | 0.7 |
 Candida albicans | 57 | 5.3 (2.1–15.3) |  |
 Candida, other | 37 | 6.5 (2.2–17.4) |  |
Rare pathogens | Â | Â | Â |
 Listeria monocytogenes | 7 | 8.0 (0.8–19.7) |  |
 Acinetobacter spp. | 7 | 5.8 (0.9–39.0) |  |
 Haemophilus spp. | 4 | 29.9 (17.3–36.6) |  |