Table 1.

Descriptive statistics for the patients' characteristics.

Characteristic	Male	Female
	Count (percent)	Count (percent)
Number of patients	31 (38.75)	49 (61.25)
	Mean±SE mean	Mean±SE mean
Age	48±11.13	46±13.31
Preoperative left atrial diameter	48±4.71	47±4.61
Left ventricular ejection fraction (%)	53±6.86	52±6.94
	Count (percent)	Count (percent)
Paroxysmal AF	2 (2.50)	3(3.75)
History of embolic stroke	1 (1.25)	1(1.25)
Preoperative heart failure	4 (5.00)	7 (8.75)
Coronary artery disease	9 (11.25)	6 (7.50)
Hypertension	14 (17.50)	22 (27.50)
Diabetes mellitus	4 (5.00)	14 (17.50)
Lung disease	8 (10.00)	7 (8.75)

AF=atrial fibrillation; SE=standard error