Table 3.

Factors associated with low ectopic burden at 12 months

	Odds ratio	95% confidence interval	p Value
Female gender	2.29	1.58–3.32	<.001
BU ≤25 mg/dl	1.68	1.12–2.50	.012
QRS ≥150 ms	1.67	1.14–2.45	.008
Left bundle branch block	1.60	1.06–2.40	.025
Reduction in age by decade (10 years)	1.24	1.06–1.45	.009
Reduction in LVESV indexed by BSA (10 ml/m2)	1.16	1.07–1.26	<.001

VPC, ventricular premature complexes; LVESV, left ventricular end systolic volume; BSA, body surface area; BUN, blood urea nitrogen.

Low ectopic burden, ≤10 VPCs/hour.