Table 2.

Biological variables on ICU admission.

Blood Leukocytes Count, mm3	9183 ± 3543 (1500–25300)
Platelets Count, mm3	258 464 ± 105 195 (45000–712000)
< 100 000/mm3, n (%)	6 (3%)
Hemoglobin, g/dl	12.6 ± 2.4 (4.6–18.3)
< 10 g/dl, n (%)	29 (15%)
Prothrombin Time, %	88 ± 16 (11–118)
≤ 50%, n (%)	7 (4%)
Activated partial thromboplastin time ratio	1.1 ± 0.2 (0.7–2.2)
≥ 1.5 control, n (%)	7 (4%)
Nitrogen Urea, mmoles/l	5.5 ± 2.7 (1–19)
≥ 10 mmoles/l, n (%)	12 (6%)
Blood gas on room air *
PaO2, mm Hg	78 ± 17 (43–100)
PaCO2, mm Hg	39 ± 5 (26–63)
pH	7.43 ± 0.05 (7.30–7.50)
SaO2, %	95 ± 4 (76–99)

Results are expressed as mean ± SD (range), unless otherwise stated.

*data available for 142 patients.