Table 1.

Descriptive statistics for pre-, intra- and postoperative variables in patients undergoing CABG from December/1999 to February/2012 (n=1.628).

Variable	mean	dp	median	min	max
age (years)	60.7	9.4	61	25	91
BMI (Kg/m2)	27	4.2	26.6	15.3	49.3
time of surgery-admission	6.2	5.8	4	0	38
(d)	4.1	5.2	2	0	30
Ucor stay up to 30 days (d)
Creatinine peak - Intake	0.4	0.7	0.1	-0.2	7.5
(mg/dL)
Total of graft	2.7	0.7	3	1	5
CPB time (min)	94.4	25.5	92	24	218