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Table 2 Description of the blood stream infections at the time of the first positive blood culture according to the gram stain result.

From: Serum procalcitonin elevation in critically ill patients at the onset of bacteremia caused by either gram negative or gram positive bacteria

Mean (SD) or number (%) GN bacteremia n = 52 GP bacteremia n = 45 p
Time elapsed from ICU admission (N. of days) 4.9 (7.2) 8.9 (18.8) 0.076
SOFA score 6.3 (4.5) 5.8 (3.0) 0.466
Platelet count (cell/mm3) 175,057 (20,839) 242,844 (20,880) 0.061
Creatininemia (μmol/L) 207.6 (176.0) 162.8 (148.4) 0.182
Prothrombin time (%) 57.9 (22.7) 64.7 (21.4) 0.144
Septic shock 24 (47.1) 22 (48.9) 0.789
Secondary sepsis Nosocomial sepsis 9 (17.3) 22 (42.3) 12 (26.7) 19 (42.2) 0.270 0.993
Infection source    0.001
   Lung 18 (34.6) 10 (22.2) 0.184
   Abdominal 15 (28.8) 5 (11.1) 0.053
   Soft tissues 1 (2.0) 10 (22.2) 0.014
   Urinary tract 13 (25.0) 3 (6.7) 0.022
   Miscellaneous or unknown 5 (9.6) 17 (37.8) 0.480
  1. ICU: Intensive Care Unit; SOFA: Sepsis-related Organ Failure Assessment; BSI: Blood Stream Infection; GN: Gram Negative; GP: Gram Positive.