Table 1 Patient demographic characteristics

Male

114 (62.6%)

Female

68 (37.4%)

Age, mean

64.1 ± 10.2

Age ≥ 75 years

15 (8.2%)

Mean ejection fraction

54.2 ± 6.1

Paroxysmal atrial fibrillation

119 (65.4%)

Persistent atrial fibrillation

63 (34.6%)

Cardiomyopathy (dilated)

9 (4.9%)

Mitral/aortic valve disease

29 (15.9%)

Serum creatinine; mg/dl

0.94 ± 0.27

Elevated serum creatinine

27 (14.8%)

CHADS 2 score:

CHADS2 = 0

41 (22.5%)

CHADS2 = 1

92 (50.5%)

CHADS2 = 2

36 (19.8%)

CHADS2 ≥ 3

13 (7.1%)