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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