|
Demographics
|
|
Age (years)
|
48.0 ± 11.4
|
52.0 ± 10.3
|
3.067
|
0.002
|
|
Male
|
161 (74.2)
|
93 (83.8)
|
3.866
|
0.049
|
|
Body mass index (kg/m2)
|
25.3 ± 3.7
|
25.8 ± 4.0
|
1.254
|
0.211
|
|
Smoking history
|
80 (36.9)
|
58 (52.3)
|
7.133
|
0.008
|
|
Drinking history
|
72 (33.2)
|
37 (33.3)
|
0.001
|
0.978
|
|
Underlying conditions
|
|
Hypertension
|
145 (66.8)
|
76 (68.5)
|
0.091
|
0.763
|
|
Diabetes mellitus
|
9 (4.1)
|
6 (5.4)
|
0.266
|
0.606
|
|
Chronic obstructive pulmonary disease
|
5 (2.3)
|
11 (9.9)
|
9.155
|
0.002
|
|
Cerebrovascular disease
|
30 (13.8)
|
23 (20.7)
|
2.578
|
0.108
|
|
Peripheral vascular disease
|
25 (11.5)
|
18 (16.2)
|
1.421
|
0.233
|
|
Renal insufficiency
|
58 (26.7)
|
60 (54.1)
|
23.807
|
< 0.001
|
|
Gastrointestinal tract disease
|
18 (8.3)
|
8 (7.2)
|
0.119
|
0.730
|
|
Atrial fibrillation
|
1 (0.5)
|
1 (0.9)
|
0.235
|
0.628
|
|
General surgery history
|
45 (20.7)
|
24 (21.6)
|
0.035
|
0.852
|
|
Heart surgery history
|
16 (7.4)
|
9 (8.1)
|
0.056
|
0.812
|
|
New York Heart Association class
| | |
4.230
|
0.238
|
|
I
|
137 (63.1)
|
74 (66.7)
| | |
|
II
|
61 (28.1)
|
24 (21.6)
| | |
|
III
|
17 (7.8)
|
9 (8.1)
| | |
|
IV
|
2 (0.9)
|
4 (3.6)
| | |
|
Pulmonary artery hypertension
|
7 (3.2)
|
2 (1.8)
|
0.558
|
0.455
|
|
Pericardial effusion
|
68 (31.3)
|
29 (26.1)
|
0.957
|
0.328
|
|
Left ventricular ejection fraction (%)
|
62 (60, 65)
|
62 (60, 65)
|
0.343
|
0.732
|
|
Laboratory values
|
|
White blood cell count (× 109/L)
|
9.8 (7.3, 12.2)
|
11.1 (8.2, 14.1)
|
2.614
|
0.009
|
|
Red blood cell count (× 1012/L)
|
4.2 (3.8, 4.6)
|
4.2 (3.7, 4.5)
|
0.126
|
0.900
|
|
Hemoglobin (g/l)
|
128 (112, 138)
|
130 (114, 139)
|
0.653
|
0.514
|
|
Platelet count (× 109/L)
|
171 (133, 218)
|
143 (120, 185)
|
3.409
|
0.001
|
|
Serum creatinine (μmol/L)
|
78.5 (66.0, 104.6)
|
88.2 (65.8, 129.5)
|
2.218
|
0.027
|
|
Serum albumin (g/L)
|
37.9 ± 4.3
|
37.3 ± 4.5
|
1.183
|
0.238
|
|
Cardiopulmonary bypass time (minutes)
|
206 (169, 247)
|
231 (186, 275)
|
3.027
|
0.002
|
|
Aortic cross clamp time (minutes)
|
117 (94, 142)
|
126 (102, 160)
|
2.177
|
0.029
|
|
Transfusion of red blood cells (units)
|
6.5 (6, 8.5)
|
8.5 (6.5, 10.5)
|
4.749
|
< 0.001
|
