Table 3. Predisposing factors and rates of postoperative atrial fibrillation in CABG patients .

Variable	CABG with AF (n=93)	CABG without AF (n=463)	P value
Female gender	60 (64.5)	304 (65.8)	0.450
Age>65	31 (33.3)	104 (22.5)	0.020
Hypertension	10 (10.8)	33 (7.1)	0.162
Smoking	24 (25.8)	178 (38.4)	0.013
Not receiving Beta-blocker	17 (18.3)	132 (28.5)	0.026
Not receiving CC.Blocker	58 (62.4)	337 (72.8)	0.031
CPB time (min, mean±SD)	117.3±44.6	108.5±40.4	0.059
ACC time time (min, mean±SD)	67.7±30.4	64.3±29.6	0.309
Cold blood cardioplegia	91 (97.8)	460 (99.4)	0.197
Aortic root reperfusion	62 (66.7)	298 (64.5)	0.393
Topical ice slush	83 (91.2)	425 (92.0)	0.468
Cardiac venting techniques	85 (93.4)	439 (95.0)	0.338
ICU stay (day, mean±SD)	6.4±7.3	4.2±4.4	0.000
In-hospital stay	10.7±7.4	8.9±5.4	0.010

ACC time=Aortic Cross-Clamp time; AF=Atrial Fibrillation; CABG= Coronary Artery Bypass Grafting; CC.Blocker= Calcium Channel Blocker; CPB= Cardiopulmonary Bypass; ICU=Intensive Care Unit; SD=Standard Deviation