Table 6.

Univariate analysis of predictors of arrhythmic outcomes.

Factor	Hazard ratio	95% CI	P-value
Composite endpoint
Apical HCM	2.42	1.38–4.22	0.002
LV apical aneurysm	3.70	1.12–12.27	0.03
Maximal segmental wall thickness (per mm)	0.93	0.82–1.05	0.25
Family history of unexplained SCD	1.07	0.44–2.59	0.88
Unexplained syncope	0.95	0.39–2.29	0.90
LGE ≥ 15%	3.82	1.21–12.08	0.02
Atrial fibrillation	1.38	0.71–2.71	0.35
Presence of ER pattern on ECG	0.95	0.29–3.12	0.94
Sustained monomorphic VT
Apical HCM	5.89	1.78–16.90	0.003
LV apical aneurysm	6.20	1.64–23.40	0.01
Maximal segmental wall thickness	0.80	0.63–1.02	0.07
Family history of unexplained SCD	5.20	1.65–16.36	0.01
Unexplained syncope	3.34	1.05–10.66	0.04
LGE ≥ 15% of LV mass	7.41	0.77–71.27	0.08
Atrial fibrillation	0.74	0.23–2.34	0.61
Presence of ER pattern on ECG	1.85	0.40–8.44	0.43

LGE, late gadolinium enhancement; ER, early repolarization; LV, left ventricular; SCD, sudden cardiac death.