Table 4.

Factors independently associated with arrhythmic events (appropriate shock, inappropriate shock, death, syncope, atrial fibrillation).

Variable	OR	95% CI	P value
Presence of spontaneous type 1 ECG	8.54	0.385–26.37	.003
VT/VF history	9.21	0.004–1.88	.002

CI = confidence interval, OR = odds ratio, VF = ventricular fibrillation, VT = ventricular tachycardia.