Table 2

Baseline Electrocardiographic Characteristics

CharacteristicNSVT (n = 79)No NSVT (n = 2,020)p Value
Atrial PDs4 (5.1)56 (2.7)0.23
Ventricular PDs10 (12.7)51 (2.5)<0.0001
First-degree AV block7 (8.8)54 (2.6)0.0013
Left axis deviation11 (13.9)96 (4.7)0.0003
Right bundle branch block5 (6.3)25 (1.2)0.004
Left bundle branch block03 (0.15)1.00
Minor IVCD5 (6.3)62 (3.7)0.10
Minor ST-T changes11 (13.9)109 (5.4)0.0014
Any of these characteristics40 (49.5)368 (17.0)<0.0001

Values are (%).

AV = atrioventricular; IVCD = intraventricular conduction delay; NSVT = nonsustained ventricular tachycardia; PD = premature depolarization; ST-T = ST-segment–T-wave.