Table 5. Factors predicting VT/VF (multivariate analysis).

Variables	HR (95% CI)	P value
Change rate of QRS duration (ms/year)	2.44 (1.28–4.65)	0.007
TR pressure gradient (mmHg)	1.12 (1.02–1.22)	0.017

VT, ventricular tachycardia; VF, ventricular fibrillation; TR, tricuspid regurgitation; HR, hazard ratio; CI, confidence interval.