Table 1. Patient population profile (survivors and non-survivors).

Factor	Survivors	Non survivors	P
	(N = 907)	(N = 22)
Age (years)	65.3±13	74.8±11	0.001
Gender male	619 (68)	13 (59)	0.362
Left ventricular ejection fraction (%)	54.5±12	44.3±13	0.001
Serum creatinine (mg/dL)	1.12±0.9	2.17±2.1	0.001
Hematocrit (%)	39.2±4.8	37.6±3.6	0.242
Recent myocardial infarction	84 (9)	2 (9)	0.999
Unstable angina	30 (3)	2 (9)	0.173
Chronic obstructive pulmonary disease	47 (5)	2 (9)	0.325
Diabetes on medication	144 (16)	3 (14)	0.985
Previous cerebrovascular accident	27 (3)	1 (5)	0.362
Redo operation	67 (7)	3 (14)	0.227
Emergent surgery	25 (3)	5 (23)	0.001
Isolated coronary operation	372 (41)	7 (32)	0.511
Cardiopulmonary bypass duration (min)	82±34	137±90	0.009
Aortic cross-clamping time (min)	58±27	86±42	0.005
Lowest temperature on CPB (°C)	32±1.6	31.2±2.4	0.021
Hypothermia (<25°C)	7 (0.7)	0 (0)	0.679
Lowest hematocrit on CPB (%)	26.3±3.5	24.1±3.7	0.005
Severe hemodilution (hematocrit <20%)	22 (2.4)	0 (0)	0.460
Intraoperative atrio-ventricular block	102 (11)	1 (4.7)	0.323
ACEF score	1.34±0.7	2.29±1.1	0.001
Logistic EuroSCORE	7.1±7.7	23.1±20.5	0.001

Data are expressed as mean ± standard deviation of the mean or number (%). P values according to Mann-Whitney U test. CPB: cardiopulmonary bypass.