The Impact of Left Atrial Size in Catheter Ablation of Atrial Fibrillation Using Remote Magnetic Navigation

Table 4

Multivariate analysis with logistic regression.

Variables		OR	95% C.I
			Lower	Upper
Gender	Male vs. female	1.2	0.4	3.6	0.771
Age (years)	<60 vs. ≥60	0.9	0.3	3.4	0.904
BMI (kg/m^2)	<24 vs. ≥24	1.9	0.6	6.3	0.301
Paroxysmal AF	Yes vs. No	1.8	0.5	6.7	0.357
LA diameter (mm)	<40 vs. ≥40	7.3	1.7	31.0	0.007
Basic diseases	Yes vs. No	0.8	0.2	4.0	0.815
Four classical pulmonary vein ostia patterns	Yes vs. No	0.5	0.2	1.6	0.234
Procedure duration (min)	<141.6 vs. ≥141.6	3.1	0.6	14.6	0.163
Duration from mapping begin to ablation finish (min)	<98.0 vs. ≥98.0	2.4	0.5	10.7	0.248
Total X-ray time (sec)	<432.0 vs. ≥432.0	0.7	0.2	2.3	0.515

BMI: body mass index; AF: atrial fibrillation; LA: left atrial; OR: odds ratio; CI: confidence interval.