Variable Control n = 94 NE n = 72 p
Age; years 67 (11) 66 (12) 0.456
Male (%) 78 64 0.081
Height; m 1.68 (0.1) 1.68 (1.1) 0.711
Weight; kg  81.0 (16.3) 78.4 (16.6) 0.306
Diabetes mellitus (%) 33 40 0.415
NYHA (%)   
1-2   
3-4   

64
36

63
37

0.872
0.872
Baseline preopHb; g.L-1
Baseline preop Cr; mmol.L-1
139 (19)
116 (84)
133 (15)
83.8 (55)
0.028*
0.006*
Values are mean (SD) or number (proportion).*p<0.05
NE: Norepinephrine group; NYHA: New York Heart Association; Hb: Hemoglobin concentration; Cr: Creatinine concentration
Table 1: Pre-operative characteristics of control and norepinephrine group patients.