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Table 2
Patient characteristics on admission with detail of the diagnostic categories
Variable	All		Complex cardiac surgery		Trauma		Subarachnoid hemorrhage

Number	200		113		66		21
	AOX	Placebo	AOX	Placebo	AOX	Placebo	AOX	Placebo
Number	102	98	57	56	34	32	11	10
Gender, male/female	127/73		70/43^a		52/14^a		5/16^a
Age, years	59 ± 19		70 ± 10^a		40 ± 19^a		54 ± 9
	58 ± 19	59 ± 20	69 ± 8	71 ± 11	40 ± 19	40 ± 19	54 ± 7	53 ± 10
Weight, kg	74 ± 15		75 ± 16		75 ± 13		68 ± 12
	74 ± 15	74 ± 15	75 ± 16	74 ± 17	72 ± 12	77 ± 13^b	72 ± 13	64 ± 9^c
Body mass index, kg/m²	25.8 ± 4.6		26.5 ± 5.0		24.9 ± 3.9		24.5 ± 3.4
	25.8 ± 4.8	25.7 ± 4.3	26.7 ± 5.3	26.2 ± 4.7	24.2 ± 3.8	25.6 ± 3.9	25.2 ± 4.0	23.7 ± 2.5
SAPS II	37.5 ± 12.7		39.3 ± 10.4^d		35.7 ± 15.4^d		33.9 ± 13.6^d
	38.4 ± 12.7	36.6 ± 12.8	38.4 ± 9.3	40.3 ± 11.4	39.9 ± 17.0	31.1 ± 12.2^e	33.6 ± 12.0	34.2 ± 9
SOFA score at admission	8.3 ± 2.5		9.1 ± 1.7^a		7.5 ± 3.1^a		6.3 ± 2.9^a
	8.2 ± 2.8	8.3 ± 2.2	8.8 ± 1.7	9.3 ± 1.6	7.8 ± 3.5	7.1 ± 3.2	5.7 ± 3.8	6.9 ± 1.4

^aP < 0.0001; ^bP = 0.08; ^cP = 0.14; ^dP = 0.07; ^eP = 0.01. Superscripts a and d refer to comparison between diagnostic categories. Superscripts b, c, and e refer to comparison between AOX and placebo (= P) groups. SAPS, Simplified Acute Physiology Score; SOFA, sequential organ failure assessment.
Berger et al. Critical Care 2008 12:R101 doi:10.1186/cc6981

Table 2