Table 3.

Variables Associated With Freedom From VA Events During Follow-Up in the Overall Patient Cohort

	5-y Arrhythmic Risk Predictors
	Univariable			Multivariable
	HR	95% CI	P Value	aHR	95% CI	P Value
Age (/y)	0.998	0.984-1.011	0.723
Male	0.710	0.420-1.199	0.200
TWI tot (/lead with TWI)	0.960	0.868-1.061	0.423
PVC burden (log)	1.189	1.034-1.368	0.015	1.102	0.950-1.279	0.200
Cardiac syncope	1.038	0.532-2.026	0.912
History of NSVT	2.629	1.655-4.176	<0.001	2.097	1.274-3.450	0.004
RVEF (/%)	0.978	0.960-0.998	0.027	0.989	0.97-1.009	0.288
LV involvement	2.121	1.088-4.138	0.027	1.488	0.717-2.924	0.302

Bold values indicate P < 0.050.

LV = left ventricular; NSVT = nonsustained ventricular tachycardia; RVEF = right ventricular ejection fraction; VA = ventricular arrhythmias.