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Table 1 Univariate analysis for patients with or without POAF

From: High mobility group box 1 gene polymorphism is associated with the risk of postoperative atrial fibrillation after coronary artery bypass surgery

Variable

POAF (n = 37)

No POAF (n = 91)

P value

Age (years)

65.7 ± 6.4

59.1 ± 7.6

0.002

Gender

   

 Male

29 (78.4 %)

77 (84.6 %)

0.397

 Female

8 (21.6 %)

14 (15.4 %)

Diabetes

12 (32.4 %)

29 (31.9 %)

0.951

Hypertension

24 (64.9 %)

55 (60.4 %)

0.641

Hypercholesterolemia

25 (67.6 %)

59 (64.8 %)

0.768

Previous myocardial infarction

15 (40.5 %)

37 (40.7 %)

0.99

Previous cerebral attack

3 (30 %)

7 (70 %)

0.937

Peripheral vascular disease

0 (0 %)

1 (1.1 %)

0.522

Chronic renal insufficiency

1 (2.7 %)

9 (9.9 %)

0.17

NYHA score

   

 I

3 (8.1 %)

8 (8.8 %)

0.994

 II

25 (67.6 %)

61 (67.0 %)

 III

7 (18.9 %)

18 (19.8 %)

 IV

2 (5.4 %)

4 (4.4 %)

Diseased vessels

   

 1

1 (2.7 %)

2 (2.2 %)

0.967

 2

4 (10.8 %)

9 (9.8 %)

 3

32 (86.5 %)

80 (88.0 %)

LVEF ≤ 50 %

6 (16.2 %)

13 (14.3 %)

0.781

Preoperative medications

   

 Beta-blockers

30 (81.1 %)

78 (85.7 %)

0.513

 ACEI/ARB

18 (48.6 %)

41 (45.1 %)

0.712

 Ca2 + −channel blocker

19 (51.4 %)

51 (56.0 %)

0.629

Mean CPB time (min)

107.2 ± 35.4

79.1 ± 31.9

0.023

Mean aortic clamp time (min)

74.9 ± 25.1

48.6 ± 24.4

0.017

Mean intensive care unit stay (days)

5.2 ± 3.6

4.9 ± 2.7

0.81

  1. POAF postoperative atrial fibrillation, LVEF left ventricular ejection fraction, CPB cardiopulmonary bypass