Table 2

Consecutive patients with idiopathic ventricular fibrillation: characteristics of patients with and without a Brugada sign

	Brugada sign (n=8)	Normal ECG (n=31)	p Value ^*
Age (years) (mean (SD))	32 (14)	43 (14)	NS
Male sex	7 (87%)	17 (55%)	NS
Familial sudden death	2 (25%)	0	p < 0.05^*
Ventricular fibrillation during sleep^2-151	4 (50%)	0	p < 0.005^*
Inducible ventricular fibrillation	7/7 (100%)^2-152	24 (75%)	NS

^* Fisher's exact test.
↵2-151 These four patients had additional episodes of ventricular fibrillation (n=3) or syncope (n=1) while awake during daytime.
↵2-152 One patient with Brugada sign did not undergo electrophysiological evaluation.