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Table 1 Preoperative patients’ baseline clinical data between the two groups

From: Influence of chronic kidney disease on early clinical outcomes after off-pump coronary artery bypass grafting

 

Normal Group (n = 924)

CKD Group (n = 249)

t/Χ2

P

Age (ys)

63.5 ± 9.3

69.8 ± 9.2

9.618

< 0.001†

Female sex

228 (24.7)

117 (47)

47.035

< 0.001†

Hypertension

607 (65.7)

208 (83.5)

29.444

< 0.001†

Diabetes

353 (38.2)

130 (52.2)

15.884

< 0.001†

Stroke

195 (21.1)

71 (28.5)

6.142

0.013†

Hyperlipemia

389 (42.1)

118 (47.4)

2.237

0.135

COPD

25 (2.7)

8 (3.2)

0.185

0.667

AF

40 (4.3)

21 (8.4)

6.704

0.01†

Emergency

18 (1.9)

7 (2.8)

0.701

0.403

Diseased coronary vessels

 Triple

602 (65.1)

155 (62.3)

1.569

0.210

 Left main

33 (3.6)

10 (4.0)

0.110

0.740

 Left main + Triple

217 (23.5)

70 (28.1)

2.246

0.134

 Others (single or two)

72 (7.8)

14 (5.6)

1.359

0.244

 LVEF(%)

61.1 ± 13.2

57.4 ± 13.2

3.579

< 0.001†

 Hemoglobin(g/L)

135.0 ± 15.4

121.9 ± 18.7

10.216

< 0.001†

 Albumin(g/L)

40.1 ± 13.8

37.9 ± 4.2

2.484

0.013†

  1. COPD Chronic obstructive pulmonary disease, AF Atrial fibrillation, LVEF Left ventricular ejection fraction
  2. †Significant difference