Clinical Study

Polymorphisms but Not Mutations of the KCNQ1 Gene Are Associated with Lone Atrial Fibrillation in the Chinese Han Population

Table 1

Clinical characteristics of the study population.

Case ( )Control ( )

Agea (years, mean ± SD) 0.211
Gender (female, (%))68 (35.8%)71 (37.4)0.831
Diabetesb ( (%))8 (4.2%)10 (5.3%)0.810
Smoking habit ( (%))60 (31.6%)54 (28.4%)0.576
Drinking habit ( (%))55 (33.7%)43 (22.6%)0.197
Family history3 (1.6%)NANA
Left atrial dimension (mm) <0.01
Left ventricle ejection fraction (%) 0.215
LVEDD (mm) 0.542
LVESD (mm) 0.253

NA: data not available.
aAge was defined as the age at the sample collection.
bDiabetes was defined as ongoing therapy of diabetes or a fasting plasma glucose level of ≥7.0 mmol.