Table 3.

Multivariate analysis for the baseline characteristics which predict recurrence of AF after RFCA

	Univariate analysis		Multivariate analysis†
	OR (95% CI)	P value	OR (95% CI)	P value
Male	0.44 (0.14–1.39)	0.161
Age	0.99 (0.93–1.06)	0.829
Body mass index	0.85 (0.68–1.06)	0.147
Persistent AF	3.6 (1.13–11.51)	0.031*
History of hypertension	1.88 (0.60–5.89)	0.279
History of diabetes	0.43 (0.05–3.57)	0.433
Baseline 3D LAVImax	1.06 (1.02–1.09)	0.004*	1.05 (1.02–1.09)	0.004*

AF atrial fibrillation, RFCA radiofrequency catheter ablation, OR odds ratio, CI confidence interval, 3D LAVImax three-dimensional (3D) echocardiographic measurement of left atrial volume index

^†Stepwise method for variable selection

*Statistical significance