Late outcome of surgical radiofrequency ablation for persistent valvular atrial fibrillation in China: a single-center study

Table 2 Predictors of AF recurrence in Cox multivariate survival regression analysis

Variables	β	SEM	HR	95% CI	P Value
AF duration	0.322	0.131	2.762	1.831 ~ 3.664	<0.001
Pre-op BNP	0.141	0.039	2.964	1.943 ~ 4.177	<0.001
Pre-op heart rate	−0.320	0.006	0.668	0.657 ~ 0.680	<0.001
Pre-op LAD	0.330	0.062	3.017	2.872 ~ 3.255	<0.001
Post-op atrial tachyarrhythmias	0.614	0.263	1.823	1.184 ~ 3.643	0.012
AF at discharge	0.857	0.321	2.355	1.255 ~ 4.419	0.008

β regression coefficient, SEM standard error of the mean, HR hazard ratio, CI confidence interval

ISSN: 1749-8090