Table 1.

Baseline characteristics by POAF status

	No POAF (n = 568)	POAF (n = 121)	p value
Age	54 [42-61]	58 [52-64]	<0.0001
Body mass index	28 [24-33]	29 [25-35]	0.349
Female	159 (28.0%)	30 (24.8%)	0.474
Ventricular arrhythmia	146 (25.7%)	33 (27.3%)	0.721
Hypertension	367 (64.7%)	79 (65.3%)	0.906
Diabetes	235 (41.5%)	60 (49.6%)	0.101
Dialysis dependent renal failure	13 (2.3%)	2 (1.7%)	0.662
Prior stroke	46 (8.3%)	17 (14.2%)	0.047
Chronic lung disease (moderate/severe)	88 (15.7%)	21 (17.7%)	0.596
Prior myocardial infarction	194 (34.3%)	50 (41.3%)	0.142
NYHA Class IV	492 (86.9%)	108 (90.0%)	0.320
Ejection fraction (%)	15 [10-20]	15 [10-20]	0.271
Pulmonary artery systolic pressure (mmHg)	47.5 [36-60]	55 [41-62]	0.015
Aortic regurgitation (moderate/severe)	19 (4.9%)	4 (4.8%)	0.984
Mitral regurgitation (moderate/severe)	243 (49.5%)	62 (61.4%)	0.029
Tricuspid regurgitation (moderate/severe)	166 (35.5%)	46 (45.5%)	0.058
Preoperative albumin (g/dL)	3.6 [3.2-4.0]	3.5 [3.1-3.9]	0.066
Preoperative bilirubin (mg/dL)	0.8 [0.5-1.4]	0.9 [0.6-1.4]	0.259
Preoperative hematocrit (%)	35 [31-39]	35 [30-39]	0.986
Prior cardiac surgery	153 (26.9%)	23 (19.0%)	0.069
Urgent or Emergent status	447 (78.7%)	95 (78.5%)	0.964
Preoperative inotropes	423 (74.5%)	92 (76.0%)	0.720
Preoperative intraaortic balloon pump	89 (15.7%)	21 (17.4%)	0.651
Preoperative ECMO	17 (4.5%)	4 (4.1%)	0.862

NYHA = New York Heart Association; POAF = postoperative atrial fibrillation; ECMO = extracorporeal membrane oxygenation