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Table 3 Main characteristics of the included patients with either proven VAP or bacteremia at the time it was clinically suspected.

From: Serum procalcitonin for the early recognition of nosocomial infection in the critically ill patients: a preliminary report

Mean (SD) or number (%) VAP
n = 37
bacteremia
n = 10
p
Time elapsed from ICU admission (N. of days) 16.8 (11.1) 13.5 (9.8) 0.391
Temperature (°C) 37.4 (1.6) 38.2 (1.3) 0.163
Heart rate (bpm) 110 (23) 112 (23) 0.828
Respiratory rate (bpm) 30 (9) 31 (3) 0.652
PaO2/FIO2 (mmHg) 208 (110) 292 (157) 0.074
MAP (mmHg) 63 (15) 69 (14) 0.241
Vasopressor requirement (Yes/No) 20 (42) 6 (26.1) 0.282
SOFA score 7.0 (4.6) 5.9 (4.7) 0.489
Previous exposure to steroids 20 (42) 6 (26.1) 0.282
WBC count (103 cells/mm3) 17.9 (12.8) 14.3 (7.3) 0.394
CRP (mg/L) 137.6 (111.1) 98.6 (66.8) 0.382
PCT D0 (ng/mL) 4.7 (8.4) 8.5 (12.3) 0.261
ΔPCTD-1, D0 * +4.7 (9.5) +10.9 (13.5) 0.189
Platelet count (cell/mm3) 256,912 (207,429) 262,800 (231,402) 0.939
Creatininemia (μmol/L) 166.8 (131.6) 192.8 (160.2) 0.602
Lactate (mmol/L) 2.0 (0.9) 2.6 (1.1) 0.258