Table 1

Electrocardiographic characteristics observed in patients with idiopathic ventricular fibrillation and controls

	Idiopathic ventricular fibrillation (n=39)	Controls (n=592)	p Value ^1-150
Definite Brugada sign^1-151	6 (15%)	0	p < 0.005
Probable Brugada sign^1-151	2 (5%)^1-152	5 (1%)	p < 0.05
RsR′ (V1–V2) without ST elevation	6 (16%)	73 (12%)	NS
⩾ 1 mm ST elevation (V1–V2)	5 (13%)	54 (9%)	NS

↵1-150 χ² test.
↵1-151 Numbers relate to the first ECG only, which is why they are slightly different from those in table 2.
↵1-152 One patient with a questionable Brugada sign at presentation had a definite Brugada sign during follow up and the other had normal traces.