Table 1.

Baseline characteristics of the subjects

Variable	AF group (n=9)	Non-AF group (n=6)
Age	50.1±7.2	47.3±12.1
Gender (%)
Female	6 (66.7%)	3 (50%)
Male	3 (33.3%)	3 (50%)
Left atrial diameter (mm)	70.1±25.1†	35.2±2.6
Ejection fraction	51.7±3.2	55.1±4.9
Rheumatic heart disease	Yes	None
Hypertension	None	None
Hyperlipidemia	None	None
Diabetes mellitus	None	None
Coronary heart disease	None	None
Infectious disease	None	None
Connective tissue disease	None	None
Other autoimmune diseases	None	None
Other cardiovascular diseases	None	None

Data are presented as mean±standard deviation and n (%).

^†P<0.01 (AF group vs. non-AF group).

AF - atrial fibrillation